Cerebral Asymmetry: Language and Brain Functions

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What is the effect of commissurotomy on the visual system?

It selectively restricts visual processing to one hemisphere at a time. (correct)

It impairs visual processing in both hemispheres.

It balances visual processing between the two hemispheres.

It enhances visual processing in both hemispheres.

What was Vicki's experience when grocery shopping after her surgery?

She became disoriented and lost her way in the supermarket.

She could not decide what to buy due to confusion in her mind.

She experienced extreme physical pain while shopping.

She had trouble reaching for items due to a fight between her hands. (correct)

What does the case of patients only reporting seeing 'RING' but correctly choosing 'key' with their right hand indicate?

The patients are intentionally choosing the wrong stimuli.

The left hemisphere is aware of the stimuli but the right hemisphere is not.

The right hemisphere has some level of awareness even though the patients deny seeing anything on the left. (correct)

Both hemispheres are equally unaware of information they see.

What is the function of the left hemisphere according to Baynes & Gazzaniga, 2000?

Interpreting and making up plausible explanations. Signup and view all the answers

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. Signup and view all the answers

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. Signup and view all the answers

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. Signup and view all the answers

'The Interpreter' hypothesis explains which aspect of consciousness?

'The Interpreter' hypothesis explains unitary consciousness. Signup and view all the answers

'Late disconnection syndrome' is most strongly evident in which system according to Wolman (2012)?

The visual system Signup and view all the answers

What does the case example of Vicki's competitive movements of the hands indicate?

Vicki's hands exhibited conflicting movements after her surgery. Signup and view all the answers

What did Pierre Paul Broca report in his multiple case studies?

Loss of speech following damage to the left hemisphere Signup and view all the answers

According to Gunturkun & Ocklenburg (2017), which hemisphere is responsible for speech?

Left hemisphere Signup and view all the answers

Which functional difference is used to assess cerebral asymmetry?

All of the above Signup and view all the answers

What did William Van Wagenen perform in 1940 in Rochester, New York?

First split-brain surgery Signup and view all the answers

What is the immediate effect of acute disconnection syndrome?

Mute patients who communicate only through body language Signup and view all the answers

Which of the following is used to study anatomical and molecular differences in cerebral asymmetry?

Size of hemispheres & individual brain regions Signup and view all the answers

What is the premise behind split-brain surgery?

Improving seizures in epileptic patients with corpus callosum tumor Signup and view all the answers

What did Vogel & Bogen conduct starting in 1961?

First complete commissurotomies Signup and view all the answers

What is observed in most patients immediately after experiencing acute disconnection syndrome?

Left-sided apraxia – Inability to perform purposeful movements on verbal command Signup and view all the answers

What is the use of corpus callosotomy, also known as 'Split-brain surgery'?

To improve seizures in epileptic patients with corpus callosum tumor Signup and view all the answers