Biopsychology - hemispheric lateralisation & localisation of function

To investigate the of each hemisphere, Sperry used 11 patients who had their severed to reduce severe symptoms. So the two hemispheres could not information.

Sperry's split brain research: he used a screen to present an image or word to the left or right . A range of tasks was used, involving patients responding with their left hand ( hemisphere) or right hand or ( hemisphere).

The function of the motor cortex is to movements. It sends to on the opposite side of the body. The left controls on the side vice versa.

The function of the auditory area is to process and based information. Info received by the left ear is processed by the vice versa.

The function of the somatosensory area is to process information from the - including heat, touch and . The more the area of the body, the part of the somatosensory area is to it. E.g. Over half of this are is for and face.

The function of the visual is to receive and process visual information. Each eye sends information from right visual to , vice versa.

found using scans that London taxi drivers have a large of matter in the than in non taxi drivers. This is an area associated with spatial and . This shows that certain are localised in areas of the brain, as theory

A limitation of localisation theory comes from ... criticised the claim that functions are localised, by proposing the theory- that and sensory functions are localised, but functions (e.g. ) are not. So not all functions may be localised