Cerebral Asymmetry: Language and Brain Functions
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Questions and Answers

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?

<p>Interpreting and making up plausible explanations. (C)</p> Signup and view all the answers

Which part of both eyes views the left visual field and is processed in the right hemisphere?

<p>Part of both eyes that view the upper visual field. (D)</p> Signup and view all the answers

What was Vicki's experience when getting dressed after her surgery?

<p>She ended up wearing multiple outfits at once due to confusion in her hands. (D)</p> Signup and view all the answers

What happens when visual stimuli is restricted to one hemisphere at a time through rapid stimulus presentation?

<p>It ensures that the stimuli only reaches one hemisphere at a time. (B)</p> Signup and view all the answers

'The Interpreter' hypothesis explains which aspect of consciousness?

<p>'The Interpreter' hypothesis explains unitary consciousness. (C)</p> Signup and view all the answers

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

<p>The visual system (C)</p> Signup and view all the answers

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

<p>Vicki's hands exhibited conflicting movements after her surgery. (B)</p> Signup and view all the answers

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

<p>Loss of speech following damage to the left hemisphere (D)</p> Signup and view all the answers

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

<p>Left hemisphere (D)</p> Signup and view all the answers

Which functional difference is used to assess cerebral asymmetry?

<p>All of the above (D)</p> Signup and view all the answers

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

<p>First split-brain surgery (B)</p> Signup and view all the answers

What is the immediate effect of acute disconnection syndrome?

<p>Mute patients who communicate only through body language (D)</p> Signup and view all the answers

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

<p>Size of hemispheres &amp; individual brain regions (A)</p> Signup and view all the answers

What is the premise behind split-brain surgery?

<p>Improving seizures in epileptic patients with corpus callosum tumor (B)</p> Signup and view all the answers

What did Vogel & Bogen conduct starting in 1961?

<p>First complete commissurotomies (C)</p> Signup and view all the answers

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

<p>Left-sided apraxia – Inability to perform purposeful movements on verbal command (C)</p> Signup and view all the answers

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

<p>To improve seizures in epileptic patients with corpus callosum tumor (A)</p> Signup and view all the answers

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