20 Questions
What is the effect of commissurotomy on the visual system?
It selectively restricts visual processing to one hemisphere at a time.
What was Vicki's experience when grocery shopping after her surgery?
She had trouble reaching for items due to a fight between her hands.
What does the case of patients only reporting seeing 'RING' but correctly choosing 'key' with their right hand indicate?
The right hemisphere has some level of awareness even though the patients deny seeing anything on the left.
What is the function of the left hemisphere according to Baynes & Gazzaniga, 2000?
Interpreting and making up plausible explanations.
Which part of both eyes views the left visual field and is processed in the right hemisphere?
Part of both eyes that view the upper visual field.
What was Vicki's experience when getting dressed after her surgery?
She ended up wearing multiple outfits at once due to confusion in her hands.
What happens when visual stimuli is restricted to one hemisphere at a time through rapid stimulus presentation?
It ensures that the stimuli only reaches one hemisphere at a time.
'The Interpreter' hypothesis explains which aspect of consciousness?
'The Interpreter' hypothesis explains unitary consciousness.
'Late disconnection syndrome' is most strongly evident in which system according to Wolman (2012)?
The visual system
What does the case example of Vicki's competitive movements of the hands indicate?
Vicki's hands exhibited conflicting movements after her surgery.
What did Pierre Paul Broca report in his multiple case studies?
Loss of speech following damage to the left hemisphere
According to Gunturkun & Ocklenburg (2017), which hemisphere is responsible for speech?
Left hemisphere
Which functional difference is used to assess cerebral asymmetry?
All of the above
What did William Van Wagenen perform in 1940 in Rochester, New York?
First split-brain surgery
What is the immediate effect of acute disconnection syndrome?
Mute patients who communicate only through body language
Which of the following is used to study anatomical and molecular differences in cerebral asymmetry?
Size of hemispheres & individual brain regions
What is the premise behind split-brain surgery?
Improving seizures in epileptic patients with corpus callosum tumor
What did Vogel & Bogen conduct starting in 1961?
First complete commissurotomies
What is observed in most patients immediately after experiencing acute disconnection syndrome?
Left-sided apraxia – Inability to perform purposeful movements on verbal command
What is the use of corpus callosotomy, also known as 'Split-brain surgery'?
To improve seizures in epileptic patients with corpus callosum tumor
This quiz covers the origin of cerebral asymmetry research, the dominant hemisphere for language, and related conditions such as aphasia, acalculia, and apraxia. Explore the historical Paris conference, the concept of speaking with the left hemisphere, and the functions associated with the dominant hemisphere.
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