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A-Level Psychology Revision

Biopsychology

The nervous and endocrine systems, the brain, plasticity and biological rhythms.

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Which side of the body does the left hemisphere control?

Biopsychology is a core part of A-Level Psychology. Revise the key concepts and common mistakes below, then lock them in with the free games.

Key concepts

CNSCentral nervous system — brain and spinal cord.
PNSPeripheral nervous system — somatic + autonomic.
SympatheticANS branch mobilising fight-or-flight.
ParasympatheticANS branch promoting rest-and-digest.
Endocrine SystemNetwork of glands releasing hormones into blood.
AdrenalineHormone from adrenal medulla driving acute stress response.
LocalisationSpecific brain areas have specific functions.
Broca's AreaLeft frontal lobe area for speech production.
Wernicke's AreaLeft temporal lobe area for speech comprehension.
Motor CortexFrontal strip controlling voluntary movement.
LateralisationHemispheres specialise (e.g. language usually left).
Corpus CallosumFibre bridge linking the two hemispheres.
PlasticityBrain's ability to change physically with experience.
Synaptic PruningRemoval of unused synaptic connections during development.

What your exam board covers

Where Biopsychology sits in each exam board's specification. Tap a board to see what it lists.

AQABiopsychologySpec 7182
  • The nervous and endocrine systems
  • Neurons and synaptic transmission
  • Localisation and lateralisation of brain function
  • Plasticity and functional recovery
  • Ways of studying the brain
  • Biological rhythms

Source: AQA A-level Psychology (7182) specification — Specification at a glance, accessed 23 June 2026.

Learn Biopsychology step by step

Free interactive mini-lessons: short screens, worked examples and quick checks. Pick your exam board:

Other boards:EdexcelOCR

Common mistakes to avoid

Questions where students often pick the tempting wrong answer — make sure you know the right one:

Which side of the body does the left hemisphere control?✗ The left (same) side.   ✓ The right (opposite/contralateral) side.

Practise Biopsychology — free games

Test yourself with these quick revision games for this topic:

▶ Two Truths, One Lie▶ Reveal Race▶ Connections Grid▶ Falling Words▶ Word Web

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More A-Level Psychology topics

Social InfluenceMemory & CognitionAttachmentApproaches in PsychologyPsychopathologyResearch MethodsIssues & DebatesApplied Psychology
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