Efficiency of information processing to include: — AQA A-Level Physical Education
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Efficiency of information processing refers to how effectively the brain uses the Whiting's model (input, decision making, output, feedback) to select and execute the correct response with minimal delay and effort. In AQA A-Level PE, this includes Hick's Law, the psychological refractory period, and strategies to improve reaction time, anticipation, and decision-making accuracy.
Efficiency of information processing to include: explained
Efficiency of information processing to include: covers 32 specification points, including Application of Whiting’s information… and Applied understanding of information….
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Application of Whiting’s information processing model to a range of sporting contexts.
Whiting's information processing model explains how performers process environmental information to produce a skilled response. The model begins with the display (the environment) and sensory organs detecting information. This passes to the perceptual mechanism, which interprets the data. The translatory mechanism then makes a decision and selects a motor programme. The effector mechanism transmits this decision via motor nerves to the muscular system, producing the response. Feedback then loops back to the display. Applying the model requires linking each specific mechanism to a sporting action. In a tennis return, the perceptual mechanism judges the ball's spin, the translatory mechanism selects a backhand, and the effector mechanism sends impulses to the arm muscles.
Applied understanding of information processing terms within a sporting context.
Information processing describes how a performer takes in, interprets and acts on cues from a game. The main terms are input, decision making, output and feedback. Input is the sensory information detected, such as the flight of a ball or the position of an opponent. Decision making selects the appropriate response from memory, comparing the current situation with stored experiences. Output is the movement produced, for example a pass or a shot. Feedback is information about the outcome or the movement itself, which loops back to refine later decisions. In a sporting context, a netball centre receives input from the movement of team-mates, decides whether to pass or drive, outputs the chosen action, then uses feedback from the pass to adjust the next one. Efficiency depends on how quickly and accurately each stage is completed.
Environment.
The environment is the source of all information a performer detects during play. It includes the physical surroundings, such as the pitch surface, weather and lighting, and the dynamic sporting situation, such as the positions of opponents, team-mates and the ball. Efficient information processing depends on the performer selecting relevant cues from this environment and ignoring irrelevant ones. For example, a hockey player in heavy rain must detect the speed of the ball on a wet surface while ignoring crowd noise. A noisy or visually cluttered environment can overload attention and slow decision making, whereas a familiar environment allows faster recognition of cues. The environment therefore provides the input stage of the information processing model, and its complexity directly affects how efficiently a performer can decide and respond.
Display.
In Whiting's information processing model, the display is the physical environment and all the information available to the performer at a given moment. It is the starting point of the model, existing before the performer's sensory organs detect the information or selective attention filters it. For a netball centre preparing to receive a pass, the display includes the ball, the feeder's body position, nearby opponents, teammates, court markings, and crowd noise. The display contains both relevant and irrelevant stimuli. Efficient information processing relies on the performer's ability to extract the most important cues from this display, allowing the perceptual mechanism to interpret the data accurately without being overwhelmed by unnecessary environmental noise.
Sensory organs.
Sensory organs are the structures that detect information from the display and send it to the brain for processing. In AQA A-Level Physical Education, the key sensory organs for movement are the eyes, which detect visual cues such as the flight of a ball, and the ears, which detect auditory cues such as a teammate's call. Proprioceptors in muscles, tendons and joints also provide internal information about body position and movement, which supports balance and coordination. A gymnast landing a vault, for example, uses vision to judge the mat, hearing to pick up a coach's instruction and proprioception to sense limb position. Efficient processing depends on these organs detecting accurate information quickly.
Perceptual mechanism.
The perceptual mechanism is the first stage of information processing: it detects and interprets relevant sensory information from the environment. In sport, receptors in the eyes, ears, muscles and joints pick up cues such as the flight of a ball, an opponent's body shape or a whistle. Selective attention filters out irrelevant stimuli so the performer can focus on the most important cues. The mechanism then recognises patterns stored in memory, which speeds up decision making. For example, a cricket batter detects the bowler's arm speed and seam position, ignores crowd noise, and recognises a familiar bowling action. Efficient perception allows faster, more accurate responses; inefficient perception causes delayed or wrong decisions. This mechanism links directly to the translatory mechanism, which carries the selected information onward.
Translatory mechanism.
The translatory mechanism is the second stage of information processing: it receives the information selected by the perceptual mechanism and converts it into a decision or action plan. It compares incoming cues with stored memories and past experiences, then decides what response to make. For example, a football player perceives a teammate's run, the translatory mechanism decides whether to pass, shoot or dribble, and the effector mechanism then sends the chosen movement to the muscles. Efficient translation produces quick, appropriate decisions; inefficient translation causes hesitation or poor choices. The mechanism links perception to action and depends on memory, anticipation and decision-making skills. It does not itself produce movement; it prepares the decision that the effector mechanism will execute.
Effector mechanism.
In Whiting's information processing model, the effector mechanism follows the translatory mechanism and precedes the muscular system. Once a motor programme is selected, the effector mechanism transmits this decision. It sends motor commands via efferent nerve pathways from the central nervous system to the muscular system, which then contracts to produce the response. For example, after a netball player decides to pass, the effector mechanism transmits impulses to the arm muscles to initiate the throw. The efficiency of the effector mechanism depends on the speed of nerve impulse transmission. Faster transmission reduces reaction time and response time, leading to more efficient skill execution.
Muscular system output data.
In the information-processing model, muscular system output data refers to the physical motor response or movement produced by muscular contraction following a decision. Once the brain (central mechanism) has processed information and selected a motor programme, impulses are sent via the motor nerves to the effector muscles. The resulting action—such as the swing of a tennis racket, a pass in netball, or a tackle in rugby—is the muscular system output. This output is the observable result of the entire information-processing cycle. If the initial perception and decision-making were accurate, the muscular output will likely result in a successful skill execution. Feedback is then gathered based on this output to inform future actions.
Feedback data.
Feedback data is information about the outcome or execution of a movement that the performer receives and uses to adjust future attempts. It can be intrinsic, arising from the senses during and after the action, or extrinsic, provided by a coach, video, timer or scoreboard. It can concern knowledge of results, such as a shot landing wide, or knowledge of performance, such as a coach noting that the elbow dropped. In information processing, feedback data is compared with the intended outcome, and any mismatch becomes an error signal that guides adaptation. For example, a badminton player sees the shuttle land long, then shortens the next overhead clear. The efficiency of this loop depends on the accuracy, timing and relevance of the feedback data available.
Definitions of and the relationship between reaction time, response time, movement time.
Reaction time is the interval between the presentation of a stimulus and the initiation of a response. Response time is the total interval from stimulus presentation to the completion of the response, including reaction time plus movement time. Movement time is the interval from the start of the movement to its completion. The relationship is: response time = reaction time + movement time. When a sprinter hears the gun, reaction time is the delay before the first muscle action, movement time is the duration of the sprint, and response time is the total from gun to finish. Efficient information processing can reduce reaction time, whereas movement time is determined by physical and technical factors such as power and biomechanics.
Simple reaction time.
Simple reaction time is the time taken to initiate a single, pre-programmed response to one known stimulus, with no decision about which response to make. In AQA A-level Physical Education, it is studied within the efficiency of information processing. The performer detects the stimulus, such as a starting gun, and executes the one learned action, such as driving out of the blocks. Because there is only one stimulus and one possible response, the decision-making load is minimal, so simple reaction time is typically shorter than choice reaction time. It is assessed through multiple-choice questions that require you to identify the definition, give a sporting example, or explain why a sprinter's start involves simple rather than choice reaction time.
Choice reaction time.
Choice reaction time is the time taken to initiate a response when there is more than one possible stimulus, more than one possible response, or both, so the performer must first decide which response to make. In AQA A-level Physical Education, it is studied within the efficiency of information processing. For example, a tennis player at the net must read whether the opponent is playing a passing shot or a lob, then select the appropriate movement. Because the performer must identify the stimulus and choose among responses, choice reaction time is typically longer than simple reaction time. It is assessed through multiple-choice questions requiring definition, comparison with simple reaction time, or application to a game situation.
Factors affecting response time.
Response time is the total interval from the arrival of a stimulus to the completion of the movement it triggers. It combines reaction time, the delay before any muscle activity begins, with movement time, the duration of the action itself. In AQA A-level Physical Education, the factors you must know include the number of stimulus-response choices, stimulus intensity, stimulus predictability, the performer's arousal and attention, age and fitness, and practice or familiarity with the skill. For example, a sprinter reacting to a starting gun has one simple stimulus and a very short response time, whereas a badminton player must read an opponent's racket, decide between several shots and then move, so more choices lengthen the delay. Response time is measured in seconds or milliseconds, and a shorter time is generally better where speed of reaction matters.
Hick’s law.
Hick's law describes how choice reaction time increases as the number of stimulus-response alternatives increases. The relationship is logarithmic, so each doubling of equally likely choices adds a roughly constant amount to reaction time. For example, a tennis player returning a serve must choose among a forehand drive, backhand drive, forehand lob or backhand lob, so reaction time is longer than for a swimmer reacting to a single signal. The law assumes alternatives are equally likely and the performer cannot anticipate. Skilled performers reduce the effect through anticipation and cue detection, effectively cutting the number of genuine choices. Hick's law explains why simple tasks produce faster responses than complex ones.
Psychological refractory period.
The psychological refractory period (PRP) is the delay in responding to a second stimulus when it arrives shortly after a first stimulus that is still being processed. In AQA A-Level Physical Education, this belongs to the study of how efficiently performers process information. A practical example is a badminton player who has committed to a drop shot: while the brain is still selecting and programming that response, the opponent plays a fast drive, and the reply to the second stimulus is slower than normal. The delay occurs because the performer is held to be a single-channel processor, so the second decision must wait until the first has been dealt with. The PRP is therefore a measurable cost of limited processing capacity, and it explains why disguising a first action or presenting a late second stimulus can deceive an opponent.
Single channel hypothesis.
The single channel hypothesis states that a performer can process only one piece of information at a time, so a second stimulus must wait until the first has been processed. In AQA A-Level Physical Education, this hypothesis is used to explain the psychological refractory period and the limits of decision making in fast sports. For example, a cricket batsman facing a disguised slower ball may begin a shot, then have to adjust to a different delivery; the adjustment is delayed because the first decision is still occupying the channel. The hypothesis does not mean that performers cannot attend to several things, but that central decision making is serial. Efficient performers reduce the delay through anticipation, cue detection and practised decision making, which shortens processing time and frees the channel sooner.
Definitions of anticipation.
Anticipation is a cognitive skill within information processing: a performer uses cues and probabilities from the display, before or during the movement, to predict what is about to happen and to begin an appropriate response earlier. In AQA A-level Physical Education, anticipation is studied as a way of improving the efficiency of information processing, because predicting an opponent's action reduces the amount of time needed to detect, decide and act. A tennis player who reads the server's racket face and toss, or a defender who moves before a pass is made, is anticipating rather than reacting. Anticipation depends on cue detection, stored memory of similar situations and attention to relevant information. It can be spatial, predicting where something will go, or temporal, predicting when it will happen.
Temporal.
Temporal anticipation is the prediction of when an event or action will occur, as opposed to spatial anticipation, which predicts where it will occur. In AQA A-level Physical Education, temporal anticipation is studied within the efficiency of information processing because predicting the timing of a stimulus allows a performer to prepare and initiate a response at the correct moment. A cricket batter who begins the backlift before the ball is released, or a goalkeeper who dives as the penalty taker strikes the ball, is using temporal anticipation. It depends on detecting timing cues, such as the rhythm of an opponent's movement or the speed of an approaching ball, and on memory of similar past events. Accurate temporal anticipation reduces the processing time available for detection and decision making, allowing a better-timed response.
Spatial.
Spatial anticipation is a key factor in the efficiency of information processing, involving the prediction of what will happen and where an event will occur in the sporting environment. In AQA A-Level Physical Education, it is studied alongside temporal anticipation (predicting when it will happen). By correctly anticipating spatial cues—such as a goalkeeper reading a penalty taker's body shape to predict the ball's placement—a performer can pre-program their response. This significantly reduces reaction time and overall response time, making processing more efficient. However, if the spatial anticipation is incorrect, the performer will suffer a delay due to the psychological refractory period, as they must process the new, correct stimulus before responding.
Strategies to improve response time.
Response time is the total time from the onset of a stimulus to the completion of a movement, calculated by adding reaction time and movement time. Strategies to improve response time must target these distinct components. Reaction time can be shortened by improving selective attention to filter out irrelevant cues, using mental rehearsal, and developing spatial and temporal anticipation through practice. For example, a sprinter practising to the gun improves their reaction time. Movement time is improved through physical training, such as developing muscular power, speed, and technique. It is crucial to recognise that improving reaction time does not shorten movement time; they are separate elements, but enhancing either will lead to a faster overall response time.
Schmidt’s schema theory.
Schmidt's schema theory explains how performers adapt to different situations without storing a separate motor programme for every possible movement. Instead, they store a generalised motor programme (GMP) containing invariant features, and use schemas (rules built from experience) to adjust variable parameters like force or speed. Every time a movement is performed, four pieces of information are stored: initial conditions, response specifications, sensory consequences, and response outcome. These form two schemas: the recall schema (initial conditions and response specifications) which initiates movement, and the recognition schema (sensory consequences and outcome) which evaluates it.
Recall.
In the context of Schmidt's schema theory, recall refers to the recall schema, which is responsible for initiating movement. Before a skill is performed, the recall schema uses information about the initial conditions (the starting environment and body position) and the response specifications (what needs to be done, such as the speed and force required). By linking these two elements based on past experiences, the recall schema selects the appropriate parameters for the generalised motor programme (GMP). For example, a golfer uses their recall schema to determine the exact force needed for a putt based on the distance to the hole.
Recognition.
In Whiting’s information processing model, perception involves the DCR process: Detection, Comparison, and Recognition. Recognition is the final stage of this perceptual process. After a stimulus is detected by the sense organs and compared to past experiences stored in the long-term memory, recognition occurs when the stimulus is successfully identified and understood. For example, a tennis player detects the spin on an incoming ball, compares it to previous shots they have faced, and recognises it as topspin. Efficient recognition allows the performer to quickly select the appropriate motor programme, reducing reaction time and improving the overall efficiency of information processing.
Initial conditions.
In Schmidt's schema theory, initial conditions are one of the four types of information gathered and stored after a movement is performed. They refer to the information about the environment and the performer's body position before the movement begins. This includes proprioceptive feedback about posture and visual information about the location of opponents or targets. For example, a basketball player notes their distance from the hoop and their body balance before shooting. Initial conditions are combined with response specifications to form the recall schema, which is responsible for initiating the motor programme.
Response specifications.
Response specifications form a crucial part of the recall schema in Schmidt’s schema theory, determining the specific parameters of a movement. Before initiating a skill, a performer processes information regarding the initial conditions (such as their position and the environment). They then select the response specifications required to achieve the desired outcome, including the speed, force, trajectory, and direction of the movement. For example, a netball player efficiently processes the distance to a teammate to specify the exact force and angle of a pass. Rapidly generating accurate response specifications improves the efficiency of information processing and decision-making.
Sensory consequences.
Sensory consequences form a crucial element of Schmidt's recognition schema. They refer to the intrinsic feedback a performer receives during and after a movement, primarily involving kinaesthetic information, such as the physical feeling of a tennis racket striking a ball. The performer uses this sensory information to evaluate their movement by comparing actual sensory consequences with expected sensory consequences. If a mismatch is detected, error correction occurs. The efficiency of information processing is vital here; autonomous performers process sensory consequences highly efficiently, allowing for rapid, automatic adjustments during performance, whereas cognitive learners process this feedback more slowly, reducing movement fluency.
Response outcomes.
Response outcomes describe what a performer actually does after information has been processed, so they are the observable end of the model. In AQA A-Level Physical Education, the chain runs: input from the senses, decision making in the central nervous system, then output as a response. Response outcomes include the accuracy of the movement, its timing, its consistency across repetitions and the speed of the reaction or movement. A closed skill such as a golf putt is judged mainly on accuracy and consistency; an open skill such as a pass in a game is judged on accuracy and timing under pressure. Reaction time is the delay between stimulus and the start of the response, while movement time is how long the action itself takes. A performer with efficient processing shows short reaction time, accurate movement and repeatable outcomes.
Application of schema theory in sporting situations.
Schema theory explains how performers store and use past experiences to guide future movements. A schema is a generalised set of rules built from many similar actions, so a netball player who has passed in many matches develops a passing schema rather than memorising every single pass. Schmidt identified recall schema, which selects and initiates a movement, and recognition schema, which evaluates the sensory consequences of that movement. Applying schema theory in sport means showing how varied practice builds a flexible schema that transfers to new situations, such as a hockey player adapting a push pass to an unfamiliar pitch or opponent. A narrow schema built from limited practice restricts adaptation, while broad, varied experience allows faster, more accurate decisions under pressure.
Strategies to improve information processing.
Information processing in sport involves detecting stimuli, selecting relevant cues, interpreting them and producing a response. Strategies to improve it target each stage. For input, selective attention training helps learners ignore irrelevant cues. For decision making, practising in variable conditions and using decision-making drills improve speed and accuracy. For response, overlearning and automaticity free attention for tactics. For feedback, using knowledge of results and performance supports error correction. A concrete method is a small-sided game where the coach calls a colour; players must scan, decide and pass accordingly, progressively increasing speed and complexity. This trains attention, decision speed and response execution together.
Input – selective attention
Selective attention filters out irrelevant environmental stimuli to focus on relevant cues at the input stage of information processing. Because the brain has a limited processing capacity, performers face constant sensory information. Selective attention prevents information overload by ensuring only vital cues, such as the flight of a cricket ball, enter the short-term memory, while ignoring distractions like crowd noise. Efficient selective attention reduces reaction time and improves decision-making accuracy. It can be developed through practice with distractions, mental rehearsal, and highlighting specific cues. Improving this filtering mechanism allows performers to process information efficiently and execute skills effectively.
Decision making process – chunking, chaining, response time, schema.
Decision making depends on how efficiently the performer processes information. Chunking groups separate items into one meaningful unit, so a tennis player reads serve, ball flight and opponent position as a single pattern rather than three separate cues. Chaining links movements or decisions in sequence, each response triggering the next, as in a pass then a supporting run. Response time is the total from stimulus to completed movement: it combines reaction time, the delay before movement starts, with movement time, the duration of the action itself. A schema is a stored mental framework built from past experience that lets the performer recognise a situation and select a suitable response quickly. Efficient processing frees attention for tactics.
Your focus
- Describe each stage of Whiting's model using the correct terminology (perceptual, translatory, effector mechanisms).
- Apply all stages of Whiting's model to a named sporting context with specific examples.
- Explain the function of the translatory mechanism in selecting a motor programme.
Show all 97 objectives
- Define input, decision making, output and feedback accurately.
- Apply each term to a specific sporting example.
- Explain how the stages link together to affect performance efficiency.
- Describe what is meant by the environment in information processing.
- Give sporting examples of relevant and irrelevant environmental cues.
- Explain how environmental complexity affects the efficiency of information processing.
- Define display as the physical environment and information available to the performer.
- Identify relevant and irrelevant cues within a given sporting display.
- Distinguish between the external display and the internal process of selective attention.
- Name the main sensory organs and receptors used in physical activity.
- Describe the type of information each sensory organ detects.
- Explain how sensory detection contributes to efficient information processing in sport.
- Describe the role of the perceptual mechanism in detecting and interpreting sensory information.
- Explain how selective attention and pattern recognition improve the efficiency of information processing.
- Apply the perceptual mechanism to a sporting example and distinguish it from the translatory and effector mechanisms.
- Describe the role of the translatory mechanism in converting perceived information into a decision.
- Explain how memory and past experience influence the decisions made by the translatory mechanism.
- Apply the translatory mechanism to a sporting example and distinguish it from the perceptual and effector mechanisms.
- Identify the correct position of the effector mechanism within Whiting's information processing model.
- Describe the role of the effector mechanism in transmitting motor commands to the muscular system.
- Explain how the efficiency of the effector mechanism influences reaction time and response time.
- Define muscular system output data as the physical movement produced by the effector muscles.
- Explain the position of muscular output within the information-processing model.
- Apply the concept of muscular output to specific sporting examples and link it to feedback.
- Define feedback data in the context of information processing.
- Distinguish between intrinsic and extrinsic feedback data.
- Distinguish between knowledge of results and knowledge of performance.
- Explain how feedback data is used to adjust future movements.
- Define reaction time, movement time and response time.
- State the relationship response time = reaction time + movement time.
- Distinguish between the cognitive factors affecting reaction time and the physical factors affecting movement time.
- Define simple reaction time accurately using the terms stimulus and response.
- Distinguish simple reaction time from choice reaction time in a sporting context.
- Apply the concept of simple reaction time to a suitable practical example.
- Define choice reaction time accurately using the terms stimulus and response.
- Compare choice reaction time with simple reaction time in terms of processing demands.
- Apply the concept of choice reaction time to a suitable game situation.
- Define response time and distinguish it from reaction time and movement time.
- Identify and explain factors that increase or decrease response time in sporting examples.
- Apply understanding of response time factors to interpret a performer's speed of response in a given situation.
- State Hick's law and describe the relationship between number of choices and choice reaction time.
- Explain why the relationship is logarithmic and what assumptions the law makes.
- Apply Hick's law to valid sporting examples and to strategies that reduce the number of choices through anticipation.
- Define the psychological refractory period accurately.
- Explain why a second response is delayed when a first stimulus is still being processed.
- Apply the psychological refractory period to a sporting example or tactical situation.
- State the single channel hypothesis accurately.
- Explain how the hypothesis accounts for delayed responses to a second stimulus.
- Apply the hypothesis to a sporting situation involving two competing stimuli.
- Define anticipation accurately in the context of information processing.
- Explain how anticipation reduces the time needed to detect, decide and respond.
- Apply the concept of anticipation to a named sporting example.
- Define temporal anticipation accurately within information processing.
- Distinguish temporal anticipation from spatial anticipation.
- Apply temporal anticipation to a named sporting example where timing is critical.
- Define spatial anticipation as predicting what will happen and where.
- Explain how spatial anticipation reduces reaction time and improves processing efficiency.
- Apply the concept of spatial anticipation to practical sporting examples, including the risks of incorrect anticipation.
- Define response time as the combination of reaction time and movement time.
- Explain cognitive strategies that reduce reaction time, such as anticipation and selective attention.
- Explain physical strategies that reduce movement time, such as speed and power training.
- Define Schmidt's schema theory and the concept of a generalised motor programme.
- Identify the four types of information stored to form schemas.
- Explain the distinct roles of the recall schema and the recognition schema in motor control.
- Define the recall schema within Schmidt's schema theory.
- Explain how the recall schema uses initial conditions and response specifications to initiate movement.
- Describe how varied practice strengthens the recall schema for better parameter selection.
- Define recognition as a stage within the DCR process of perception.
- Explain the relationship between detection, comparison, and recognition.
- Apply the concept of recognition to a sporting example to demonstrate efficient information processing.
- Define initial conditions within the context of Schmidt's schema theory.
- Identify examples of internal and external initial conditions in a sporting context.
- Explain how initial conditions contribute to the formation of the recall schema.
- Define response specifications as the movement parameters within schema theory.
- Explain how response specifications are determined from initial conditions.
- Apply the concept to a sporting example, detailing the force and direction required.
- Define sensory consequences and identify the types of intrinsic feedback involved.
- Explain the role of sensory consequences within Schmidt's recognition schema for error detection.
- Analyse how the efficiency of processing sensory consequences varies between stages of learning and impacts performance.
- Define response outcomes and place them at the output stage of the information processing model.
- Distinguish reaction time from movement time and give a sporting example of each.
- Evaluate the quality of a response using accuracy, timing, consistency and speed.
- Define schema and distinguish recall schema from recognition schema.
- Explain how varied practice develops a flexible schema that transfers to new situations.
- Apply schema theory to a named sporting situation and evaluate its effect on performance.
- Identify strategies that improve each stage of information processing.
- Explain how a chosen strategy enhances performance with a sporting example.
- Evaluate the effectiveness of strategies for different skill levels.
- Define selective attention and its function at the input stage of information processing.
- Explain how selective attention prevents information overload and reduces reaction time.
- Identify methods a coach could use to improve a performer's selective attention.
- Define chunking, chaining, response time and schema accurately.
- Distinguish response time from reaction time and movement time.
- Apply the concepts to a sporting example to explain efficient decision making.
Which command word is this?
Give a precise, concise statement of the meaning of a term, e.g., 'Hick's Law states that reaction time increases logarithmically as the number of stimulus-response choices increases.' No example required unless asked.
Efficiency of information processing to include: exam tips
Topic Overview
This topic examines how the brain processes information during physical activity, using Whiting's model of information processing: input, decision making, output, and feedback. It focuses on the factors that affect the speed and accuracy of these processes, including Hick's Law, the psychological refractory period, anticipation, and the role of feedback in refining performance.
Understanding efficiency of information processing is crucial for analysing and improving performance in sport. It explains why skilled performers appear to have more time, how deception works, and why novices struggle with complex decisions. This knowledge is essential for effective coaching, skill acquisition, and optimising performance under pressure.
Key Concepts
- →Whiting's model: input (stimulus detected by senses), decision making (perceptual and effector mechanisms), output (muscular response), feedback (intrinsic and extrinsic).
- →Hick's Law: reaction time increases logarithmically as the number of stimulus-response choices increases.
- →Psychological refractory period (PRP): a delay in processing a second stimulus while the first is still being processed, often exploited by a dummy or feint.
- →Anticipation: predicting a stimulus based on cues, which can reduce reaction time and improve decision-making efficiency.
- →Feedback: intrinsic (proprioceptive) and extrinsic (from coach/observer) information used to detect and correct errors, refining future responses.
Marking Points
- The display provides environmental information, which is detected by sensory organs.
- The perceptual mechanism interprets sensory data, filtering it through selective attention.
- The translatory mechanism uses this interpreted information to make a decision and select an appropriate motor programme.
- The effector mechanism transfers the decision via the nervous system to the muscular system.
- The muscular system executes the physical response, generating feedback for future actions.
- Application requires explicitly naming Whiting's mechanisms (perceptual, translatory, effector) and linking them to a specific sporting context.
- Input is the detection of relevant sensory information from the sporting environment, such as the position of opponents or the flight of a ball.
- Decision making is the selection of an appropriate response from stored memory, based on the interpreted input.
- Output is the motor response produced, for example a pass, shot or change of direction.
- Feedback is information about the movement or its outcome that is used to refine future performance.
- The stages operate as a linked sequence, so a weakness at one stage affects the efficiency of the whole process.
- The environment is the source of sensory information that a performer detects during performance.
- It includes physical conditions such as surface, weather and lighting.
- It includes dynamic sporting cues such as the positions of opponents, team-mates and the ball.
- Efficient processing requires selecting relevant cues from the environment and ignoring irrelevant ones.
- A complex or distracting environment can reduce the speed and accuracy of decision making.
- Display is the physical environment and all the information available to the performer at a given time.
- It is the initial component of Whiting's information processing model, preceding sensory detection.
- The display contains a mixture of relevant cues (e.g., the ball, opponents) and irrelevant stimuli (e.g., crowd noise).
- It is distinct from selective attention, which is the internal process of filtering the display's information.
- Efficient processing requires the performer to extract appropriate cues from the display for the perceptual mechanism.
- Sensory organs detect information from the display and transmit it towards the brain.
- The eyes detect visual cues such as the position of a ball, opponents or teammates.
- The ears detect auditory cues such as instructions, calls or the sound of a whistle.
- Proprioceptors in muscles, tendons and joints detect body position, movement and balance.
- Accurate and rapid detection by sensory organs supports efficient information processing and appropriate responses.
- The perceptual mechanism detects and interprets sensory information from the environment.
- Receptors in the eyes, ears, muscles and joints pick up cues such as ball flight, opponent body shape or a whistle.
- Selective attention filters out irrelevant stimuli so the performer focuses on important cues.
- Pattern recognition compares incoming information with stored memory to speed up decision making.
- Efficient perception leads to faster, more accurate responses; inefficient perception causes delayed or incorrect decisions.
- The perceptual mechanism links to the translatory mechanism, which carries selected information onward.
- The translatory mechanism receives information selected by the perceptual mechanism.
- It converts that information into a decision or action plan.
- It compares incoming cues with stored memories and past experiences.
- It decides what response to make, such as passing, shooting or dribbling in football.
- Efficient translation produces quick, appropriate decisions; inefficient translation causes hesitation or poor choices.
- It links perception to action and depends on memory, anticipation and decision-making skills.
- It does not produce movement itself; the effector mechanism executes the chosen response.
- The effector mechanism receives the selected motor programme from the translatory mechanism.
- It transmits motor commands via efferent (motor) nerve pathways from the brain to the muscular system.
- It precedes the muscular system, which is the component that actually contracts to produce the response.
- Efficient effector function depends on rapid nerve impulse transmission to the muscles.
- Faster effector mechanism transmission reduces reaction time and overall response time.
- Defines muscular system output data as the physical motor response or movement produced by muscular contraction.
- Identifies that it occurs after the central mechanism has processed information and made a decision.
- Explains that impulses are sent via motor nerves to the effector muscles to produce the action.
- Gives a sporting example of muscular output, such as executing a tennis forehand or a rugby tackle.
- Links the output to the generation of feedback, which is used to evaluate and adjust future performance.
- Feedback data is information about the outcome or execution of a movement that is available to the performer.
- Intrinsic feedback comes from the performer's own senses during or after the movement.
- Extrinsic feedback is provided by an external source such as a coach, video replay, timer or scoreboard.
- Knowledge of results describes information about the outcome of the movement, such as whether a shot landed in or out.
- Knowledge of performance describes information about how the movement was executed, such as technique or body position.
- Feedback data is compared with the intended outcome, and any mismatch acts as an error signal for adaptation.
- The efficiency of information processing depends on the accuracy, timing and relevance of the feedback data.
- Reaction time is the time between the presentation of a stimulus and the initiation of a response.
- Movement time is the time from the start of the movement to its completion.
- Response time is the total time from the presentation of the stimulus to the completion of the response.
- Response time is the sum of reaction time and movement time.
- Efficient information processing can reduce reaction time, but movement time is determined by physical and technical factors.
- Defines simple reaction time as the time from the onset of a single known stimulus to the initiation of the one required response.
- States that there is only one stimulus and only one possible response, so no response-selection decision is needed.
- Recognises that simple reaction time is typically shorter than choice reaction time because processing demands are lower.
- Applies the concept to a suitable example, such as a sprinter reacting to the starting gun by driving out of the blocks.
- Distinguishes simple reaction time from reaction time in general, which can include situations with more than one stimulus or response.
- Defines choice reaction time as the time from the onset of a stimulus to the initiation of a response when more than one stimulus or response is possible.
- States that the performer must select the correct response from alternatives, which adds a decision-making stage.
- Recognises that choice reaction time is typically longer than simple reaction time because of the additional response-selection demands.
- Applies the concept to a suitable example, such as a tennis player deciding between a passing shot and a lob.
- Explains that increasing the number of possible stimuli or responses generally increases choice reaction time.
- Response time is the interval from stimulus onset to completion of the resulting movement, so it includes both reaction time and movement time.
- Reaction time is the delay between stimulus presentation and the first muscle activity; movement time is the duration of the movement after that.
- Increasing the number of stimulus-response alternatives increases response time, which is the basis of Hick's law.
- Greater stimulus intensity, such as a louder gun or brighter light, can shorten reaction time up to a point.
- A predictable stimulus allows the performer to pre-programme the response and react faster than to an unpredictable one.
- Optimal arousal and focused attention improve response time, while very high or very low arousal and distraction slow it.
- Age, fatigue, fitness and the amount of practice or familiarity with the skill all influence how quickly a performer responds.
- Response time is measured in units of time such as seconds or milliseconds, and shorter values indicate faster processing.
- Hick's law states that choice reaction time increases as the number of stimulus-response alternatives increases.
- The increase is logarithmic, so reaction time rises by a roughly constant amount each time the number of equally likely choices doubles.
- The law applies to choice reaction time, where the performer must select among several possible responses, not to simple reaction time.
- It assumes the alternatives are equally likely and that the performer cannot predict which stimulus will occur.
- Skilled performers can reduce the number of effective choices through anticipation and by detecting early cues, which shortens reaction time.
- A sporting example is a tennis return, where reading serve placement creates several response options (e.g., forehand or backhand drive) and lengthens reaction time compared with a single-signal start.
- Defines the psychological refractory period as a delay in responding to a second stimulus presented shortly after a first stimulus.
- Explains that the delay arises because the first stimulus is still being processed when the second arrives.
- Links the effect to limited processing capacity or a single-channel processor.
- Applies the concept to a sporting example, such as a performer reacting more slowly to a late second stimulus.
- Recognises that the PRP can be used tactically to deceive an opponent, for example by disguising the first action.
- States that the single channel hypothesis proposes that only one piece of information can be processed at a time.
- Explains that a second stimulus must wait until the first has been processed.
- Links the hypothesis to the psychological refractory period and delayed responses.
- Applies the hypothesis to a sporting example where a performer must adjust to a second stimulus.
- Recognises that anticipation and practice can reduce, but not remove, the processing delay.
- Anticipation is the prediction of an upcoming event or action based on cues and probabilities in the display.
- It allows a performer to prepare or initiate a response before the event actually occurs.
- It relies on detecting relevant cues, drawing on stored memory of previous similar situations and directing attention appropriately.
- Anticipation improves the efficiency of information processing by reducing the time taken to detect, decide and respond.
- Anticipation can be spatial, predicting where an action or object will go, or temporal, predicting when it will occur.
- Examples include reading a server's racket in tennis or a defender moving before a pass is made.
- Temporal anticipation is the prediction of when an event or action will occur.
- It contrasts with spatial anticipation, which predicts where an event or action will occur.
- It relies on detecting timing cues, such as the rhythm of an opponent's movement or the speed of an approaching object.
- It draws on stored memory of previous similar situations to judge timing accurately.
- Accurate temporal anticipation allows a performer to prepare and initiate a response at the correct moment.
- It improves the efficiency of information processing by reducing the time needed for detection and decision making.
- Examples include a cricket batter starting the backlift before ball release or a goalkeeper diving as the penalty is struck.
- Spatial anticipation involves predicting what action will occur and where it will take place in the environment.
- It improves the efficiency of information processing by allowing the performer to pre-program a response.
- Successful spatial anticipation reduces reaction time and overall response time.
- It relies on selective attention to relevant environmental cues, such as an opponent's body position.
- Incorrect spatial anticipation increases response time due to the psychological refractory period, as the initial response must be inhibited.
- Response time is the sum of reaction time and movement time, and strategies can target either component.
- Reaction time can be improved by developing spatial and temporal anticipation through game-specific practice.
- Enhancing selective attention reduces the time taken to process information, thereby shortening reaction time.
- Movement time can be decreased by improving physical fitness components such as speed, power and technique.
- Mental rehearsal and pre-programming responses can prepare the performer, reducing the decision-making stage of reaction time.
- Schmidt's schema theory proposes that performers store generalised motor programmes (GMPs) adapted by schemas, rather than individual programmes for every movement.
- A schema is a set of rules or relationships developed from past experiences of performing a skill.
- Four types of information are stored: initial conditions, response specifications, sensory consequences, and response outcome.
- The recall schema uses initial conditions and response specifications to initiate the movement by selecting parameters.
- The recognition schema uses sensory consequences and response outcomes to evaluate and correct the movement.
- Recall refers to the recall schema within Schmidt's schema theory, which is responsible for initiating a motor response.
- It is formed by combining information about the initial conditions and the response specifications.
- The recall schema functions before the movement takes place to select the necessary parameters, such as force or trajectory.
- It applies these variable parameters to the generalised motor programme (GMP) to suit the specific situation.
- Varied practice strengthens the recall schema by providing a wider range of past experiences to draw upon when selecting parameters.
- Identifies recognition as the final stage of the DCR (Detection, Comparison, Recognition) perceptual process.
- Explains that recognition occurs when a stimulus is successfully identified and understood.
- States that recognition relies on the prior comparison of the stimulus with past experiences stored in long-term memory.
- Links efficient recognition to faster decision-making and improved efficiency of information processing.
- Provides a sporting example, such as recognising a specific tactical formation or the spin on a ball.
- Initial conditions are a key component of Schmidt's schema theory, gathered before a movement begins.
- They involve information about the environment, such as the position of opponents or the distance to a target.
- They also include information about the performer's physiological state and body position (proprioception).
- Initial conditions are stored in memory and combined with response specifications to form the recall schema.
- The recall schema uses this information to select the appropriate parameters to initiate the generalised motor programme.
- Defines response specifications as the movement parameters chosen to achieve a specific outcome, such as speed, force, and direction.
- Identifies response specifications as a component of the recall schema used to initiate movement.
- Explains that response specifications are determined based on the assessment of initial conditions.
- Links the rapid selection of response specifications to efficient information processing and decision-making.
- Applies the concept to a sporting example, detailing the specific force or angle required for a successful action.
- Sensory consequences refer to the intrinsic feedback (kinaesthetic, visual, auditory) gathered during or after a movement.
- They form a key component of Schmidt's recognition schema, which is used to evaluate and control motor performance.
- Performers compare actual sensory consequences with expected sensory consequences to detect errors and make corrections.
- The efficiency of processing sensory consequences determines how quickly a performer can adjust movements; autonomous learners process this feedback more efficiently than cognitive learners.
- Response outcomes are the observable results of the input–decision–output sequence, not the internal processing itself.
- Accuracy, timing, consistency and speed of response are the main measurable outcomes of information processing.
- Reaction time is the delay between the stimulus and the start of the response; movement time is the duration of the response itself.
- Closed skills are judged mainly on accuracy and consistency, while open skills are judged on accuracy and timing under pressure.
- Efficient processing produces short reaction time, accurate movement and repeatable outcomes across attempts.
- A schema is a generalised set of rules or stored information built from previous experiences of similar movements.
- Recall schema is used to select and initiate a movement; recognition schema is used to evaluate the sensory consequences of the movement.
- Varied practice across different conditions builds a broader, more flexible schema that transfers to new sporting situations.
- A performer with a well-developed schema can adapt an existing action to an unfamiliar opponent, surface or game situation.
- Limited or repetitive practice produces a narrow schema, so the performer struggles to adapt when conditions change.
- Applying schema theory means linking these principles to a specific sporting example and explaining the effect on performance.
- Selective attention training: practising with distractions to focus on relevant cues.
- Variable practice: changing conditions to improve decision making and adaptability.
- Decision-making drills: small-sided games or scenarios that require rapid choices.
- Overlearning: repeating skills until automatic, freeing attention for tactics.
- Feedback: using knowledge of results and performance to refine processing.
- Selective attention is the filtering of irrelevant stimuli to focus on relevant cues at the input stage.
- It prevents information overload due to the limited capacity of the short-term memory, filtering input from the large-capacity sensory memory.
- Efficient selective attention speeds up information processing and reduces reaction time.
- It can be improved by training with distractions, using cueing, or increasing arousal to the optimal level.
- Chunking combines several separate pieces of information into one meaningful unit, reducing the number of items that must be processed.
- Chaining links responses in a sequence so that one action or decision becomes the cue for the next.
- Response time is the interval from the presentation of a stimulus to the completion of the movement.
- Response time comprises reaction time plus movement time.
- A schema is an organised mental framework of stored experience that guides recognition and response selection.
- Efficient processing through chunking and schema use reduces the attentional demand of decision making.
Examiner Tips
- 💡Always use Whiting's exact terms: perceptual mechanism, translatory mechanism, and effector mechanism.
- 💡Structure your answer sequentially from display through to response and feedback.
- 💡Provide a concrete sporting example for each mechanism, such as a goalkeeper saving a penalty.
- 💡Read the sporting scenario carefully and identify which stage of the process the question is describing.
- 💡Use the correct term rather than a general word such as thinking or reacting, because the mark depends on precise terminology.
- 💡Check whether the question asks about the movement produced or the information received, as these are different stages.
- 💡When a question describes a sporting situation, identify which environmental cues are relevant to the performer's decision.
- 💡Link environmental complexity to its effect on processing speed or accuracy rather than describing it in isolation.
- 💡Use sporting examples that match the scenario given, such as surface conditions or opponent positioning.
- 💡Define display clearly as the environment or available information, not as a process performed by the athlete.
- 💡Give examples of both relevant and irrelevant cues within a specific sporting display to show depth of understanding.
- 💡Place display at the very beginning of Whiting's model, before the sensory organs and perceptual mechanism.
- 💡Name the specific sensory organ and the type of cue it detects in each example.
- 💡Link sensory detection to a sporting action so the role of each organ is clear.
- 💡Use the term proprioception when discussing balance, body awareness or limb position.
- 💡Read the question carefully to identify whether it asks about detection, interpretation, selective attention or pattern recognition, and choose the option that matches that specific function.
- 💡Eliminate options that describe the effector mechanism or muscular movement, because those belong to a later stage of information processing.
- 💡Use sporting examples such as a cricket batter reading a bowler's action to test each option against a concrete situation before selecting your answer.
- 💡Look for the word 'decision' or 'action plan' in an option to identify the translatory mechanism, and reject options that describe detection or muscular execution.
- 💡Link each option to a stage of information processing: perceptual, translatory or effector, and choose the one that matches the question's focus.
- 💡Use a sporting example such as a football player deciding to pass to check whether an option describes translation rather than perception or execution.
- 💡Place the effector mechanism correctly between the translatory mechanism and the muscular system in Whiting's model.
- 💡Use precise terminology: state that the effector mechanism 'transmits impulses' rather than 'makes the movement'.
- 💡Link the efficiency of the effector mechanism to improvements in reaction time and response time.
- 💡Clearly state that muscular system output is the physical movement or motor response resulting from the decision-making process.
- 💡Use a concrete sporting example, such as a netball pass, to illustrate the observable action.
- 💡Keep the direction of the model clear: sensory input enters, processing occurs centrally, and muscular output results.
- 💡In multiple-choice questions, identify whether the example describes information about the outcome or about the execution of the movement.
- 💡Check whether the source of the information is internal to the performer or external before selecting an answer.
- 💡Eliminate options that describe the movement itself rather than information about it.
- 💡Look for the option that explains how feedback data is used to reduce the mismatch between intended and actual performance.
- 💡In multiple-choice questions, identify the start and end points of the interval described before selecting an answer.
- 💡Use the equation response time = reaction time + movement time to check whether an option is consistent.
- 💡Remember that improving decision-making speeds up reaction time, but improving fitness or technique speeds up movement time.
- 💡Read the question carefully to check whether it asks about simple reaction time, choice reaction time or reaction time in general.
- 💡When giving a sporting example, name the single stimulus and the single response explicitly, for example the starting gun and the sprint start.
- 💡Use the phrase 'one stimulus, one response' as a quick check that your chosen example really is simple reaction time.
- 💡Check whether the question describes one stimulus and one response or several alternatives; the latter indicates choice reaction time.
- 💡When comparing with simple reaction time, state clearly that choice reaction time is usually longer because of the response-selection stage.
- 💡Use a game example where the performer must read and select, such as a netball player choosing between a pass and a shot.
- 💡Define response time precisely before applying it, so you can separate reaction time from movement time in your answer.
- 💡Use a named sporting example, such as a sprinter at the gun or a goalkeeper facing a penalty, to show how a specific factor changes response time.
- 💡When a question asks for factors, give several distinct factors and explain the direction of each effect rather than listing them.
- 💡Link each factor to the underlying processing stage, such as stimulus detection, decision making or response programming, to show understanding.
- 💡State the direction of the relationship first, then add that it is logarithmic, to show precise understanding.
- 💡Use a concrete, rule-compliant example with a clear number of alternatives, such as a goalkeeper facing a penalty, to contrast choice and simple reaction time.
- 💡Explain how anticipation or cue detection reduces the effective number of choices, linking Hick's law to skilled performance.
- 💡Define the term precisely before applying it, so the examiner can see the concept is understood.
- 💡Use a named sporting example and state clearly which stimulus is first and which is second.
- 💡Explain the mechanism, not just the outcome: say that the first stimulus is still being processed when the second arrives.
- 💡If asked to suggest a tactic, link the PRP to deception, such as disguising the first action to delay the opponent's response.
- 💡State the hypothesis clearly: one piece of information is processed at a time.
- 💡Use the term 'serial processing' to show understanding of the mechanism.
- 💡Link the hypothesis directly to the psychological refractory period in your explanation.
- 💡Support your answer with a sporting example that shows a delayed response to a second stimulus.
- 💡Define anticipation precisely, then link it to reduced processing time rather than describing it only as guessing.
- 💡Use a named sporting example to show cue detection leading to an earlier response.
- 💡Distinguish anticipation from reaction time in your answer to show precise understanding of information processing.
- 💡State clearly that temporal anticipation predicts when, and contrast it directly with spatial anticipation predicting where.
- 💡Support your answer with a named example where timing of the response is critical.
- 💡Link temporal anticipation to reduced processing demands so the answer stays focused on efficiency of information processing.
- 💡Use a specific sporting example, such as a tennis player predicting the direction of a serve, to illustrate spatial anticipation.
- 💡Link spatial anticipation to a reduction in reaction time to show its effect on information processing efficiency.
- 💡Mention the negative consequences of incorrect anticipation, referencing the psychological refractory period.
- 💡Clearly distinguish between strategies that improve reaction time and those that improve movement time.
- 💡State the formula (Response Time = Reaction Time + Movement Time) to structure your answer.
- 💡Provide a specific sporting example for both a cognitive strategy (e.g., anticipation) and a physical strategy (e.g., speed training).
- 💡Clearly distinguish between the recall schema (before/during initiation) and the recognition schema (during/after movement).
- 💡List the four sources of information (initial conditions, response specifications, sensory consequences, response outcome) when explaining how schemas are formed.
- 💡Use a sporting example, such as a netball shot, to illustrate how varied practice builds stronger schemas.
- 💡Always define recall in this context as the recall schema from Schmidt's schema theory.
- 💡Specify that the recall schema is responsible for initiating movement by selecting parameters for the GMP.
- 💡Explain that the recall schema relies on initial conditions and response specifications, using a practical example like passing a football.
- 💡Always contextualise recognition within the DCR process (Detection, Comparison, Recognition) when discussing perception.
- 💡Use a clear sporting example to show how a performer identifies a specific stimulus, like a bowler's grip in cricket.
- 💡Explicitly state how efficient recognition reduces reaction time and aids the selection of an appropriate response.
- 💡Always link initial conditions to Schmidt's schema theory and the formation of the recall schema.
- 💡Provide a concrete example of an initial condition, such as a tennis player noting their court position before serving.
- 💡Explain that initial conditions are gathered before the movement starts, setting the baseline for parameter selection.
- 💡Clearly link response specifications to the recall schema and the initiation of a motor programme.
- 💡Provide specific examples of movement parameters, such as the exact force and trajectory of a basketball shot.
- 💡Explain how efficient processing of initial conditions allows for more accurate and rapid response specifications.
- 💡Explicitly mention kinaesthetic feedback when defining sensory consequences in the context of schema theory.
- 💡Link the concept to the recognition schema and the process of error detection.
- 💡Contrast how efficiently autonomous and cognitive learners process sensory consequences to highlight the impact on performance fluency.
- 💡Define reaction time and movement time precisely before applying them to a sporting example, because the two are easily confused.
- 💡Use one closed skill and one open skill to show how the criteria for a good response outcome differ.
- 💡When evaluating efficiency, refer to accuracy, timing, consistency and speed together rather than naming only one.
- 💡Link each outcome back to the input–decision–output chain so the answer shows understanding of the whole model.
- 💡Name a specific sport and skill, then explain how the performer's schema is built and used in that situation.
- 💡Separate recall schema from recognition schema clearly, using one sentence for each, to show precise knowledge.
- 💡Use varied practice as the link between schema development and improved performance under pressure.
- 💡Explain transfer to a new situation to show application rather than just describing the theory.
- 💡Link each strategy to a specific stage of information processing (input, decision, output, feedback).
- 💡Use sporting examples to show how the strategy improves performance.
- 💡Compare strategies in terms of their demands and benefits for different learners.
- 💡Always link selective attention to the prevention of information overload and limited processing capacity of short-term memory.
- 💡Provide a clear sporting example, contrasting a relevant cue (e.g., the ball) with an irrelevant distraction (e.g., the crowd).
- 💡Explain how efficient selective attention directly decreases reaction time and improves decision making.
- 💡Read the stem carefully to identify whether the question asks about grouping information, linking responses, total time or stored frameworks.
- 💡When a question gives a stimulus-to-completion time, check whether it is asking for response time rather than reaction time alone.
- 💡Use a sporting example in your reasoning to test each option against the definition before selecting.
- 💡Eliminate options that describe practice methods rather than information-processing concepts.
- 💡Always use specific sporting examples to illustrate abstract concepts like Hick's Law and PRP; this demonstrates application and secures application marks.
- 💡When explaining feedback, distinguish clearly between intrinsic and extrinsic feedback and link each to how it improves future decision-making and output.
- 💡Use correct terminology consistently: perceptual mechanism, effector mechanism, stimulus-response choices, and motor programme. Avoid vague language like 'the brain just knows'.
Common Mistakes
- Using generic terms like 'input' and 'decision making' instead of Whiting's specific terminology (perceptual and translatory mechanisms).
- Confusing the translatory mechanism with the effector mechanism: the translatory mechanism selects the response, while the effector mechanism transmits the motor commands.
- Omitting the muscular system and response stages that follow the effector mechanism.
- Confusing input with decision making: input is the detection of information, while decision making is the selection of a response.
- Treating output as the decision itself: output is the observable movement produced, not the choice made beforehand.
- Ignoring feedback as a separate stage: feedback is information about the outcome or the movement, and it influences later input and decisions.
- Treating the environment as only the weather or pitch: it also includes the positions and movements of other players and the ball.
- Assuming all environmental information is useful: performers must selectively attend to relevant cues and ignore distractions.
- Confusing the environment with feedback: the environment supplies input, while feedback is information about the performer's own movement or its outcome.
- Confusing display with selective attention: display is the external environment, whereas selective attention is the internal filtering of that information.
- Defining display as the act of looking or directing attention, rather than the information itself.
- Assuming the display only contains useful information; it actually includes all environmental stimuli, both relevant and irrelevant.
- Listing only the eyes and ears: proprioceptors are also sensory receptors relevant to movement.
- Confusing sensory organs with the brain: the organs detect information, while the brain interprets it.
- Assuming sensory organs decide the response: decision making occurs after perception in the brain.
- Ignoring internal senses: proprioception is essential for balance and coordinated movement.
- Thinking the perceptual mechanism makes the final movement response; correction: it detects and interprets information, while the effector mechanism produces the response.
- Believing all available sensory information is processed equally; correction: selective attention filters out irrelevant stimuli so only important cues are processed.
- Confusing perception with memory; correction: perception detects and interprets current sensory input, while memory stores and recalls patterns used in recognition.
- Assuming perception is only visual; correction: receptors in the ears, muscles and joints also provide auditory and proprioceptive information.
- Thinking the translatory mechanism produces the muscular movement; correction: it makes the decision, while the effector mechanism sends the impulse to the muscles.
- Confusing the translatory mechanism with the perceptual mechanism; correction: perception detects and interprets information, while translation decides what to do with it.
- Believing the translatory mechanism works without memory; correction: it compares current cues with stored memories and past experiences to choose a response.
- Assuming the translatory mechanism is only used in complex sports; correction: it operates in all information-processing tasks, from simple reactions to complex game play.
- Identifying the effector mechanism as the final stage of the model; it is followed by the muscular system, response, and feedback.
- Stating that the effector mechanism itself contracts or carries out the movement; it only transmits the impulses to the muscular system.
- Claiming that faster effector responses reduce movement time; effector transmission occurs before movement onset, so it actually reduces reaction time.
- Confusing muscular system output data with biomechanical data collection (e.g., force plates or EMG); it refers to the physical movement itself.
- Treating output data as the decision itself: output is the physical execution, not the cognitive choice that preceded it.
- Confusing input and output: sensory information entering the system is input, whereas the resulting muscular movement is output.
- Confusing feedback data with the movement itself: feedback data is information about the movement or its outcome, not the physical action.
- Assuming all feedback is extrinsic: intrinsic feedback from the senses is also feedback data and can be used without a coach.
- Treating knowledge of results and knowledge of performance as identical: results concern the outcome, while performance concerns how the movement was executed.
- Believing feedback only matters after a movement: intrinsic feedback can be received during the movement and used to adjust it in real time.
- Treating reaction time and response time as the same: reaction time ends when the movement begins, while response time ends when the movement is completed.
- Confusing movement time with reaction time: movement time starts after the response has been initiated, not at the stimulus.
- Assuming efficient information processing reduces movement time: cognitive processing affects reaction time, while physical factors dictate movement time.
- Confusing simple reaction time with choice reaction time: simple reaction time involves one stimulus and one response, whereas choice reaction time involves selecting between multiple stimuli or responses.
- Thinking that simple reaction time includes movement time: it ends when the response is initiated, not when the action is completed.
- Assuming that simple reaction time is always the same for every performer: it varies with factors such as arousal, fatigue, attention and practice.
- Believing that a fast simple reaction time guarantees a fast whole-body movement: reaction time and movement time are separate components of performance.
- Confusing choice reaction time with simple reaction time: choice reaction time involves selecting between alternatives, whereas simple reaction time involves one stimulus and one response.
- Thinking that choice reaction time is always shorter than simple reaction time: the extra decision-making usually makes it longer.
- Assuming that choice reaction time depends only on physical speed: perceptual and decision-making factors also affect it.
- Believing that choice reaction time is the same as movement time: it ends when the chosen response is initiated, not when the movement is completed.
- Treating response time and reaction time as identical: response time also includes movement time, so it is longer than reaction time alone.
- Assuming more choices always make a performer faster because they are more alert: extra stimulus-response alternatives increase decision time and slow the response.
- Believing arousal always improves response time: beyond an optimum, high arousal narrows attention and slows or disrupts the response.
- Ignoring measurement units: response time is recorded in seconds or milliseconds, not in metres or arbitrary scores.
- Thinking reaction time doubles when the number of choices doubles: the relationship is logarithmic, so the increase is smaller and roughly constant per doubling.
- Applying Hick's law to simple reaction time: it concerns choice reaction time, where several stimulus-response alternatives exist.
- Using an invalid sporting example, such as volleying a tennis serve, which is against the rules and therefore not a valid choice.
- Thinking the PRP means the second stimulus is not detected at all; correction: the second stimulus is detected, but the response to it is delayed while the first is processed.
- Confusing the PRP with a simple reaction-time measure; correction: the PRP specifically concerns the delay caused by a preceding, still-unprocessed stimulus.
- Assuming the PRP is a permanent trait of a performer; correction: it is a temporary processing delay that depends on the timing and demands of the stimuli.
- Believing that practice removes the PRP completely; correction: practice can improve processing efficiency, but the underlying single-channel limitation remains.
- Thinking the single channel hypothesis means a performer cannot see or hear a second stimulus; correction: the stimulus may be detected, but central processing of it is delayed.
- Confusing the hypothesis with the psychological refractory period; correction: the hypothesis is the explanation, while the psychological refractory period is the observable delay.
- Assuming skilled performers have unlimited parallel processing; correction: skilled performers process more efficiently and anticipate better, but the single-channel limitation still applies.
- Believing that the hypothesis applies only to beginners; correction: it describes a general limitation of information processing for all performers.
- Confusing anticipation with reaction: reaction is a response after a stimulus is detected, whereas anticipation is a prediction made before or as the stimulus unfolds.
- Treating anticipation as purely physical speed: it is a cognitive process involving cue detection, memory and decision making, not just fast movement.
- Assuming anticipation is always correct: a performer can misread cues and anticipate wrongly, which can be exploited by an opponent.
- Believing anticipation removes the need for practice: accurate anticipation is developed through experience and exposure to relevant cues.
- Confusing temporal anticipation with spatial anticipation: temporal concerns when an event happens, while spatial concerns where it happens.
- Treating temporal anticipation as simply reacting quickly: it is a prediction of timing made before the event, not a response after it.
- Assuming timing prediction is always accurate: misjudging timing leads to early or late responses, which skilled opponents can exploit.
- Ignoring the role of memory: temporal anticipation depends on experience of similar situations, not only on current visual cues.
- Confusing spatial anticipation with temporal anticipation: spatial is predicting what and where, while temporal is predicting when.
- Assuming anticipation eliminates movement time: it only reduces reaction time, not the time taken to physically move.
- Believing anticipation is just guessing: it is an educated prediction based on experience, stored memories and relevant cues.
- Stating that improving reaction time shortens movement time: they are separate components of response time.
- Using reaction time and response time interchangeably: response time includes the physical movement, whereas reaction time ends when movement begins.
- Believing that physical fitness improves reaction time: fitness improves movement time, while cognitive strategies and practice improve reaction time.
- Confusing the recall schema (which initiates movement) with the recognition schema (which evaluates movement).
- Believing that schema theory requires a separate motor programme for every single movement variation: it actually uses a generalised motor programme adapted by schemas.
- Failing to identify the four specific types of information gathered during a movement: initial conditions, response specifications, sensory consequences, and response outcome must all be known.
- Treating recall as a generic memory retrieval process rather than specifically as the recall schema in Schmidt's theory.
- Confusing the recall schema with the recognition schema: recall initiates the movement, whereas recognition evaluates it.
- Forgetting that the recall schema is formed specifically from initial conditions and response specifications, not sensory consequences.
- Confusing the recognition stage of the DCR process with Schmidt's recognition schema; the correction is to focus on perception and identifying a stimulus.
- Merging comparison and recognition; the correction is to define comparison as matching with memory and recognition as the subsequent identification.
- Failing to link recognition to long-term memory; the correction is to explain that recognition depends on past experiences stored in memory.
- Treating initial conditions as a generic information processing factor rather than a specific component of Schmidt's schema theory.
- Forgetting that initial conditions include internal bodily information (proprioception) as well as external environmental factors.
- Confusing initial conditions with response specifications: initial conditions are the starting state, while response specifications are the parameters chosen for the movement.
- Defining response specifications as the rules of the game; the correction is to describe them as the physical parameters of the movement (e.g., force, speed).
- Confusing response specifications with sensory consequences; the correction is to state that response specifications are decided before movement, while sensory consequences are feedback.
- Failing to link response specifications to initial conditions; the correction is to explain that parameters are chosen based on the current environmental situation.
- Confusing sensory consequences with response outcome. Correction: Response outcome relates to the end result of the action (knowledge of results), whereas sensory consequences relate to the intrinsic feel of the movement (knowledge of performance).
- Ignoring the role of processing efficiency. Correction: Do not just define the term; recognise that the speed and efficiency with which a performer processes sensory consequences affect their ability to make immediate movement adjustments.
- Believing sensory consequences are part of the recall schema. Correction: They belong to the recognition schema, which evaluates movement, whereas the recall schema initiates movement.
- Confusing reaction time with movement time: reaction time is the delay before the response begins, whereas movement time is how long the response itself lasts.
- Treating response outcomes as internal mental events: they are observable behaviours such as accuracy, timing and consistency that a coach or test can record.
- Assuming faster is always better: a fast but inaccurate response is a poor outcome, so speed must be judged alongside accuracy and timing.
- Ignoring consistency: one accurate attempt is not evidence of efficient processing; repeatable outcomes across trials matter.
- Treating a schema as a single stored movement: it is a generalised set of rules built from many similar experiences, not one memorised action.
- Mixing up recall and recognition schema: recall schema initiates the movement, while recognition schema evaluates the sensory feedback afterwards.
- Claiming that schema theory means practice should always be blocked and repetitive: varied practice is what broadens the schema and aids transfer.
- Describing schema theory in the abstract without applying it to a named sporting situation, which loses application marks.
- Misunderstanding: thinking information processing is only about reaction time. Correction: it includes attention, perception, decision making, response and feedback.
- Misunderstanding: believing practice should always be blocked and predictable. Correction: variable and random practice can improve decision making and transfer.
- Misunderstanding: ignoring feedback. Correction: feedback is essential for error detection and correction, and should be specific and timely.
- Stating that selective attention involves ignoring all information. Correction: It involves actively selecting relevant cues while filtering out irrelevant ones.
- Placing selective attention at the output stage. Correction: It occurs at the input stage, between sensory memory and short-term memory.
- Assuming sensory memory has a limited capacity. Correction: Sensory memory has a very large capacity but brief duration; it is short-term memory that has limited capacity.
- Treating response time as identical to reaction time; correction: response time includes reaction time plus movement time.
- Describing chunking as simply practising a skill repeatedly; correction: chunking is grouping separate items into one meaningful unit to reduce processing load.
- Confusing chaining with chunking; correction: chaining links responses in sequence, whereas chunking groups items into a single unit.
- Assuming a schema is fixed at birth; correction: a schema is built and refined through experience and practice.
- Students often think Hick's Law means reaction time increases linearly with more choices; in fact, it increases logarithmically, so the rate of increase slows as choices become very numerous.
- Many believe the psychological refractory period is the same as a simple delay in reaction time; it specifically refers to the delay in responding to a second stimulus while processing the first, not just general slowness.
- Students frequently overlook the role of feedback in improving information processing, treating it as an end product rather than a loop that refines the perceptual and effector mechanisms.
Revision Plan
- 1Day 1-2: Learn the definitions and components of Whiting's model, and create a diagram to visualise the flow of information.
- 2Day 3-4: Study Hick's Law and the psychological refractory period, finding real sporting examples for each and explaining them in your own words.
- 3Day 5-6: Investigate anticipation and feedback, noting how they improve efficiency and linking them to the perceptual and effector mechanisms.
- 4Day 7-8: Practice exam-style questions, focusing on applying concepts to sporting scenarios and using correct terminology.
- 5Day 9-10: Review common misconceptions and create flashcards for active recall, testing yourself on definitions and applications.
Exam Question Types
- 📋Definition and explanation questions: e.g., 'Define Hick's Law and explain how it affects decision-making in a team game.' Use precise definitions and link to a sport.
- 📋Application questions: e.g., 'Using a sporting example, explain how the psychological refractory period can be exploited by a performer.' Ensure your example clearly shows the delay in processing a second stimulus.
- 📋Analysis and evaluation questions: e.g., 'Evaluate the role of feedback in improving the efficiency of information processing.' Discuss both intrinsic and extrinsic feedback and their impact on future performance.
- 📋Data interpretation questions: e.g., 'The table shows reaction times for different numbers of choices. Explain the relationship using Hick's Law.' Identify the logarithmic trend and apply the law.
Command Word Expectations (AQA)
Give a precise, concise statement of the meaning of a term, e.g., 'Hick's Law states that reaction time increases logarithmically as the number of stimulus-response choices increases.' No example required unless asked.
Provide a detailed account that includes reasons or mechanisms, often with a sporting example. For example, 'Explain how anticipation improves efficiency' requires a description of cue detection and its effect on reaction time.
Weigh up the importance or effectiveness of a concept, considering both strengths and limitations, and reach a justified conclusion. For example, 'Evaluate the role of feedback in information processing' requires discussion of intrinsic vs extrinsic feedback and their relative impact.
How Students Lose Marks (Examiner Pitfalls)
Step-by-Step Worked Solutions
Question: Explain how a coach could use knowledge of Hick's Law and the psychological refractory period to improve a performer's decision-making in a team game. (6 marks)
- 1.Step 1: Define Hick's Law - as the number of choices increases, reaction time increases logarithmically.
- 2.Step 2: Define the psychological refractory period - a delay in responding to a second stimulus while processing the first.
- 3.Step 3: Apply Hick's Law - the coach should reduce the number of options for a novice (e.g., in cricket, only play front-foot drive) to speed up decision-making.
- 4.Step 4: Apply PRP - the coach should train performers to disguise their actions (e.g., a dummy pass in rugby) to delay an opponent's response.
- 5.Step 5: Link to efficiency - reducing choices and using deception improves the speed and accuracy of information processing.
- 6.Step 6: Conclude - the coach can design practices that gradually increase options as skill improves, and use feints to exploit the PRP.
Question: A tennis player takes 0.25 seconds to react to a serve when expecting a fast serve, but 0.35 seconds when the serve is unexpected. Using the concept of anticipation, explain this difference. (4 marks)
- 1.Step 1: Identify the given data - reaction time is faster when the serve is expected (0.25s) than when unexpected (0.35s).
- 2.Step 2: Define anticipation - predicting the likely stimulus based on cues from the opponent's body position or game situation.
- 3.Step 3: Explain the effect - when the player anticipates correctly, they can begin processing the stimulus earlier, reducing reaction time.
- 4.Step 4: Link to efficiency - anticipation improves the efficiency of information processing by allowing the perceptual mechanism to prepare a response in advance.
- 5.Step 5: Conclude - the difference of 0.10 seconds demonstrates the benefit of anticipation in speeding up decision-making.