Localisation Of The Brain Flashcards
MOTOR AREA
responsible for movement
Frontal lobe
SOMATOSENSORY
Responsible for process of senses
E.g touch
Parietal lobe
AUDITORY
Process sound information
Temporal lobe
VISUAL
Process visual information
Occipital lobe
BROCA
Speech production
Left frontal lobe
WERNICKES
Language comprehension
Left temporal lobe
Broca’s area evidence
Patient ‘tan’ could comprehend language but could only pronounce the word tab
Wernickes area evidence
A patient couldn’t understand language but he could talk
Brain scan evidence of localisation of functions in the brain
Brain scans show areas highlight when participants carry out certain task
E.g wernickes areas is highlighted when patient is listening
Phineas Gage
Pole through head
Left frontal lobe penetrated
He had a change of personality, he developed a temper which he had never had before
Supports that something in the left frontal lobe is responsible for personality
This supports localisation as this is a specific function changed when a part of the brain is impaired
OCD AND DEPRESSION support
Dougherty (02)
44 OCD patients undergone cingulotomy- lesioning if cingulate gyrus
1/3 successful response
14% partial response
Support that symptoms and behaviour associated with mental disorders are localised
Plasticity- disputes theory
When the brain becomes damaged, particular functions can be reorganised and carried out in an alternative area of the brain therefore the same neurological action an be achieved. This has been seen in several stroke victims and limits the localisation theory as it demonstrates several parts of the brain carrying out the same function
