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3.1.1 - CNS, neurotransmitters and behaviour

Syllabus
2026
Objective
3.1.1
Level
AS

- CNS, neurotransmitters and behaviour

3.1.1 The role of the central nervous system (CNS) and neurotransmitters in human behaviour, including the structure and role of the neuron, the function of neurotransmitters and synaptic transmission.

Use - cns, neurotransmitters and behaviour to connect the rule to the data and decision in the question.

This matters because - cns, neurotransmitters and behaviour determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - cns, neurotransmitters and behaviour to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - CNS, neurotransmitters and behaviour is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.

ConceptA-Level Edexcel Psychology AS