Bio- Localisation And Hempsheric Lateralisation Flashcards
Which two case studies support brain localisation
- H.M
- Phineas Gage
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What is the problem with using case studies
- small sample size
- can’t really generalise to the whole population because it either hasn’t happened to them or they haven’t had that operation
What are the four different lobes in the brain
Frogs - frontal
Play - paraital
Outside - occipital
Tennis - temporal
What are the six different types of the brain
Motor cortex Somatosensory cortex Visual cortex Wernickes area Auditory cortex Broca's area
What does the motor cortex do
- controls voluntary movement
What does the somatosensory cortex do
- processes information about touch, pain, temperature and the position of the body
What does the visual cortex do
- processes information from our eyes
What does wernickes area do
- responsible for the understanding of language
- er in the word just like ear
What does the auditory cortex do
- processes information form our ears
What does brocas area do
- responsible for the production of speech
What is the difference between the two hemispheres
- left: specialise in language processing, can identify small details
- right: dominant in recognising emotions and spatial relationships, looks at the bigger picture
What is the thing that connects the two hemispheres
- the corpus callosum
What happens with the optic nerves and the hemispheres
- opposite nerve from each eye crosses over into the opposite hemisphere
- left eye will send signals to the right hemisphere
Why is split brain surgery a thing
- was done in the early 20th century for people with severe epilepsy
- cut the corpus callosum so it stayed in one hemisphere
- side effect is that information can no longer move Bettendorf hemispheres
Evaluation of spilt brain research
:) rare and unique cases
- provide a huge amount of information
- without them we wouldn’t be able to to manipulate in a lab ethically
:( sample size is small and unrepresentative
- case studies which means any anomalies can be exaggerated
- cannot generalise to non-western patients
- epilepsy so could have other dames to the brain already causing these results