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8.14—Human brain regions

Syllabus
2021
Objective
8.14
Level
A2

Brain regions contribute different functions but operate as a network

Brain regions specialise in tasks such as sensory processing, movement, coordination, memory and endocrine control, but behaviour emerges from networks rather than one isolated “on/off” centre.

A motor area can initiate movement while the cerebellum coordinates timing and the brainstem regulates vital functions; damage to one region can be partly compensated by connected circuits.

Functional evidence from lesions, imaging and stimulation must be interpreted with anatomy and task demands together.

A labelled brain map is not proof that one region alone causes a behaviour. Avoid deterministic localisation when the evidence shows distributed processing.

ConceptA-Level Edexcel Biology A2