biopsych ; split-blain rsrch in2 hemispheric lateralisation

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SPLIT-BRAIN RSRCH
DFGD
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- hemispheric lateralisation
gd
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what is clearly subject to this hemispheric lateralisation?
language
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what is the idea of hemispheric lateralisation?
two halves of brain are functionally different
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- split-brain rsrch
dfgdf
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sperry's study inv individuals who underwent which surgical procedure?
the one to cut their corpus callosum to separate the two hemispheres and ctrl seizures
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this meant what had been removed?
main communication line between two hemispheres
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allowed sperry and colleagues to see what?
extent to which two hemispheres separated for certain functions
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- procedure
gdfgd
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image or word could be presented to?
right visual field / lvf
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in a normal brain what would happen here?
corpus callosum immediately share info between hemispheres and give complete picture of visual world
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but presenting image to one hemisphere meant what?
info couldn't be conveyed
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- key findings
dfg
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+ describing what you see
dfgdg
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what happened when picture of object shown to RVF?
patient could easily describe what seen
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if left though?
reported they didn't see anything
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patients inability to describe objects in LVF due to?
language being processed in left hemisphere
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+ recognition by touch
dfgdf
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patients were able to do what with the images presented to LVF?
select matching object from grab bag of different objects
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EVALUATION
DGDF
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:) demonstrated lateralised brain functions
sdfdsf
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what is the main conclusiong of the sizeable body of rsrch?
lef themisphere more geared to analyric and verbal and right spatial and music
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research suggests left hemisphere is the?
analyser
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while the right is the?
synthesiser
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:) methodology strengths
dgdg
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experiment made use of what kind of procedures?
highly specialised + standardised
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what wass pp asked to stare at?
'fixation point;
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and image projected would be flashed up for?
1/10th second
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this allowed sperry to do what?
vary aspects of basic procedure and ensure only 1 hemisphere recieved info
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:( theoretical basis
fggd
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prompted theoretical debate about?
degree of communication between two hemispheres
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pucetti suggested what about two hemispheres?
so functioally different they represent duality
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in contrast other rsrchrs have suggested what about two hemisphres?
highly intergrated system
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EVALUATION EXTRA
FDFGD
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:( generalisation issue
dfgd
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what kind of sample?
unusual + small
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how many ppl took part in all variations of basic procedure?
11
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all with history of?
epileptic seizures
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argued this may have done what?
caused unique changes in brain that many have influenced findings
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also case degrees of what mgiht have happened?
varying defrees of separation
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finally why might ctrl grp have been inappropriate?
made up of 11 ppl who dinny have epileptic history
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:( functional differences may be overstated
dgdf
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basically yeah just arguing about the pop culture thing and the working togetherness
dfhfd
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- hemispheric lateralisation

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gd

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what is clearly subject to this hemispheric lateralisation?

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Card 4

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what is the idea of hemispheric lateralisation?

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- split-brain rsrch

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