Localisation of function Flashcards
what is localisation of function?
certain areas of the brain are thought to be responsible for particular functions
what are the areas of the brain?
mortor cortex brocas area auditory cortex wernicke's area visual cortex somatosensory cortex
what is the brain divided up into?
two hemispheres
what are the 2 hemispheres connected by
the corpus callosum
what does the mortor cortex do?
controls voluntary movement
what does brocas area do?
responsible for production of speech
what does the auditory cortex do?
processes information from our ears
what does Wernicke’s area do?
responsible for the understanding of language
what does the visual cortex do?
processes information from our eyes
what does the somatosensory cortex do?
processes information about touch, pain etc
What is the mortor area?
Region in the frontal lobe involved in regulating movement in
Somatosensory area
Processes sensory information
Visual area
Receives and processes information
Auditory area
Speech based info
Broca’s area
Produces speech
Wernickes area
Responsible for language
Peterson et al
Used brain scans to demonstrate how W area was active during listening task and B area was active during reading task suggesting these areas have different functions
Who’s supports the theory of localised function?
PhineAse gage
Who studies the effects of split brainsurgety?
Sperry 1968
What was the method of sperry study?
11rps had undergone split brain as a result of epilepsy
In one of experiments rps covered one eye and looked at fixed points on a projection screen.
Pictures were projected onto right or left at high speeds so there was as no time for eye movements
What were the results of sperry study?
Right= say or write without a problem Left= couldn't write or say what they had seen
What was the conclusion to the sperry study?
Shows different areas of the brain specialise different functions
What was the evaluation of the sperry study?
Using case studies meant sperry obtained both qualitative and quantitive data
Small sample
Valid and reliable
Would have been difficult to find a lot of split brain patients to study
Hard to conclude it would be same as non epileptic patients
