SPLIT-BRAIN RESEARCH INTO HEMISPHERIC LATERALISATION Flashcards
what is language subject to?
hemipsheric lateralisation
what did Sperry research?
other neural processes that can be organised in this way
who were Sperry’s ppts?
a group of individuals who went through a commissurotomy, where the corpus callosum was cut in the middle
why did the individuals go through a commisurotomy?
separating the two hemispheres to combat severe epileptic seizures
what did the ppts allow Sperry to see?
the extent to which the two hemispheres were specialised for certain functions, and if those hemispheres performed tasks independently of each other
what was the procedure for Sperry’s experiment?
image or word project into right visual field, which would be processed by left hemisphere and the same to left visual field, processed by right
in normal brain, info shared by both hemispheres
but to split-brain patient, info couldn’t be passed
what were the findings for describe what you see in Sperry’s research?
right visual field can describe what it saw as left hemp it is specialised in lang, left visual field couldn’t be described as right hemph is specialised by motor
what were the findings for recognition by touch in Sperry’s research?
left can describe and identify, however the right can only identify the item
what were the findings for matching faces in Sperry’s research?
left hemisphere dominate when asking to describe a face
right hemisphere dominated when asking to match a face
what 3 evaluation points are there for Sperry’s brain research?
+ demonstrates hemispheric lateralisation
+ strong methodology
- issues with generalisability
