Localisation of Function

Topics: Cerebrum, Frontal lobe, Brain Pages: 2 (607 words) Published: March 7, 2011
Localisation of function is the term used to briefly suggest that different areas of the brain each have individual roles and control their own functions (e.g. certain 'jobs' are localised to different areas of the brain.)

An example of this is brain hemisphere asymmetry, the phrase meaning that both the left and ride hemispheres. The left side is known to control your logical thought such as language and analytical processing, as well at the motor functions of the right side of your body including the right visual field; the right controlling such things as emotion and creative ability, and vice versa in regards to the motor functions.. This in itself shows us that different areas must control different functions otherwise the theory of brain asymmetry would be ineligible.

However some similarities occur, as each side has areas which make up 'lobes', broad parts of the brain categorised into doing specific things, which run as strips across both hemispheres. These are the lobes, and are: Frontal Lobe- Control centre for voluntary movement is located here, also holds aspects of personality and ability making decisions etc. Paretial Lobe- Control centre for sensory perception is located here, . Occipital Lobe- Control centre for visual perception.

Temporal Lobe- Centre for analysis of auditory signals and memory.

Evidence to support localisation of function occurs in such cases as Phineas Gage was an introvert and a shy man who suffered massive head injuries, destroying large portions of his frontal lobe. Surprisingly however he survive, but it was reported by his colleagues that his behaviour had become rash and aggressive. Two possible explanations are offered in regards to this, either that localisation of function allows us to presume that the area damaged controlled his behaviour, or that the emotional trauma of his accident may have caused the sudden change in his attitude and personality. Such case studies are also limited however in the sense...
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