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Psychology
BioPsychology
Hemisphere lateralisation
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Maximus
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Cards (23)
What is the primary function of the
left hemisphere
of the brain?
Language processing
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What is the primary function of the
right hemisphere
of the brain?
Spatial processing
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What is the
corpus callosum's
role in the brain?
It connects both
hemispheres
of the brain
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Why was the
corpus callosum
proposed to be cut in some patients?
To benefit people with
epilepsy
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What opportunity did the cutting of the
corpus callosum
provide researchers?
To study lateralisation of brain function
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How is information from the left side of the body processed in the brain?
It is processed by the
right hemisphere
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What happens to information transfer in
split brain patients
?
They cannot pass information to the other
hemisphere
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Can
split brain
patients
undertake normal routines?
Yes, they can
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Who conducted the split brain studies in the 1960s?
Sperry
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What was the procedure used in
Sperry's
study?
Patients had their
corpus callosum
cut to relieve epilepsy
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How many
split brain
patients were compared in
Sperry's
study?
11
split brain patients
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What was the visual setup for the patients in
Sperry's
study?
Images were shown to either the left or right
visual field
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Why were images projected at a high speed in
Sperry's
study?
To prevent
patients
from seeing the other image
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What were patients instructed to do after seeing the images?
Respond verbally or non-verbally to what they saw
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What was the outcome when images were shown in the right
visual field
?
Patients
could describe the image
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What was the outcome when images were shown in the left
visual field
?
Patients
could not describe the image
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Why could patients not verbally describe images shown in the left visual field?
Because the information went to the right
hemisphere
, which does not process
language
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How did patients recognize objects shown in the left
visual field
?
They could match the object using their
left hand
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What does the conclusion of
Sperry's
study support?
Lateralisation
of function in the brain
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What are the strengths of
Sperry's
study?
Highly standardised procedures
Controls extraneous variables
Cause and effect can be inferred
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What are the weaknesses of
Sperry's
study?
Small and unrepresentative
sample
(11 people)
Unique changes in brain due to
epilepsy
Not
generalisable
to real life
Language may not be restricted to the left
hemisphere
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What did
Gazzaniga
suggest about
language processing
in the brain?
Language may not be restricted to the
left hemisphere
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What case study did
Gazzaniga
reference to support his claim about language processing?
The case study of J.W.
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