Biology A (Salters-Nuffield) A-Level
Critical period
What Critical period means in Biology A (Salters-Nuffield) A-Level, as defined for Pearson Edexcel.
Definition of Critical period
Check what you remember
Read the wording for your board, then hide it and explain Critical period in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: Pearson Edexcel
A restricted early developmental window of high plasticity in the visual cortex, during which experience of clear images is needed for normal wiring.
Topics that use Critical period
- Topic 8: Grey Matter (Pearson Edexcel A-Level)
Related terms
- Animal experiments
- Animal models in neuroscience research
- Antagonistic muscle action
- Autonomic control of the pupil
- Benefits
- Cell signalling
- Cerebral hemispheres
- Co-ordination
Using Critical period in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology A (Salters-Nuffield) questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A (Salters-Nuffield) A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge