This topic examines the hard problem of consciousness, qualia, and major theories of consciousness. Learners will critically evaluate different philosophic
Topic Synopsis
This topic examines the hard problem of consciousness, qualia, and major theories of consciousness. Learners will critically evaluate different philosophical perspectives.
Key Concepts & Core Principles
- Substance dualism: The view that mind and body are two distinct substances, with the mind being non-physical. Descartes' argument from doubt and the indivisibility argument are key defences.
- Physicalism: The view that the mind is identical to or entirely dependent on the brain. Includes type identity theory (mental states are identical to brain states) and functionalism (mental states are defined by their causal roles).
- Property dualism: The view that mental properties are non-physical but supervene on physical properties. Often defended via the knowledge argument (Mary's room) and the explanatory gap.
- Mental causation: The problem of how mental states can cause physical events if they are non-physical. Dualists face the interaction problem; physicalists must avoid epiphenomenalism.
- Behaviourism: The view that mental states are just dispositions to behave. Ryle's critique of the 'ghost in the machine' is central, but behaviourism struggles to explain inner experiences.
Exam Tips & Revision Strategies
- Clearly distinguish between different problems of consciousness.
- Use thought experiments to illustrate qualia.
- Critically assess each theory's explanatory power.
- Use precise philosophical terminology: distinguish clearly between type and token identity, and between analytic and empirical reduction. Reference specific philosophers and texts, e.g., Smart's 'Sensations and Brain Processes'.
- Structure essays with a coherent line of argument: present physicalist theories (AO1), then evaluate them using well-chosen objections (AO2), ensuring that evaluation is sustained throughout rather than confined to a final paragraph.
- When presenting functionalism, contrast it explicitly with both type identity theory and dualism, and highlight how functionalism attempts to solve the multiple realizability problem while facing its own difficulties with absent qualia and the inverted spectrum.
- To achieve top marks, engage with the meta-philosophical question of whether the hard problem of consciousness constitutes a decisive objection to physicalism, or whether physicalists can legitimately reject the intuition that there is an explanatory gap.
- Always begin by defining key terms such as 'substance', 'property', 'dualism', and 'reduction' to establish a clear conceptual framework.
Common Misconceptions & Mistakes to Avoid
- Confusing the hard problem with easy problems.
- Misunderstanding qualia as merely subjective experience.
- Failing to support evaluation with reasoning.
- Confusing type identity theory with token identity theory, often implying that every mental token is identical to a physical token without specifying type-type identity, thereby misrepresenting Smart's claim.
- Mischaracterizing functionalism as a form of behaviorism by ignoring that functionalism posits internal states with causal roles, while behaviorism reduces mental states to dispositions to behave.
- Neglecting the multiple realizability objection when evaluating type identity theory, leading to a superficial critique that overlooks the force of Putnam's argument from species variation and neural plasticity.
Examiner Marking Points
- Explain the hard problem of consciousness.
- Define qualia and give examples.
- Compare and contrast theories of consciousness.
- Evaluate strengths and weaknesses of each theory.
- Award credit for accurately explaining type identity theory as the view that mental state types (e.g., pain) are identical to specific brain state types (e.g., C-fibre firing), referencing key proponents like Smart and Place.
- Award credit for clearly detailing functionalism, including the causal role specification of mental states and the argument from multiple realizability against type identity theory, with reference to Putnam.
- Award credit for demonstrating critical evaluation of physicalism by applying standard objections such as the knowledge argument (Mary's room), the explanatory gap, the hard problem of consciousness, or issues of qualia, and linking these to the limitations of physicalist explanations.
- Award credit for effectively comparing the relative strengths and weaknesses of type identity theory and functionalism, including the ability to handle multiple realizability and the problem of defining causal roles precisely.