Localisation

Refers to the principle that specific functions have specific locations in the brain

• Responsible for voluntary motor movements • Located in the frontal lobe along the precentral gyrus • Each hemisphere operates the opposite side of the body

• Detects sensory events arising from the brain - Located in the parietal lobe along the precentral gyrus

• Tan could understand everything but not respond with understandable language • Deficit in left frontal hemisphere • Language and the other involved in responding to cognitive tasks

• Found an area in brain for understanding language • Posterior portion of the left temporal lobe • Could speak but not understand • Neural loop - running between two areas

• Located in the visual cortex in the occipital lobe • It begins in the retina where the light strikes the photoreceptors. • Nerve impulses are transferred from the retina to the brain via the optic nerve. Terminate in the thalamus

• Lies in the temporal lobe • Pathway begins in the cochlea • Sound waves are connected to nerve impulses which travel via the auditory nerve to the auditory cortex • The brain stem is the first stop, then the thalamus, then the auditory cortex

Lashley believed that basic motor and sensory functions were localised but complex functions weren’t. He claimed the effects of brain damage were due to the nature of the damage rather than the localisation

Complex behaviours are built up gradually

Improved ability to produce language (expressive). Impaired ability to understand language (receptive).

Can’t use case studies