Sperry Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

key theme + area

A

key theme =
area =

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2
Q

background

A
  • each hemisphere is not the same and has special functions
  • left hemisphere = language + right-hand control
  • right hemisphere = imagery + left hand control
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3
Q

visual pathway

A

right visual field goes to left hemisphere
left visual field goes to right hemisphere

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4
Q

corpus callosum

A

connects the 2 hemispheres together, allows communication between the 2 hemispheres

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5
Q

split brain operations

A
  • used as treatment for epilepsy
  • limits the spread of the electrical activity and therefore limiting the seizures
  • op had few noticeable side effects in patients every day lives
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6
Q

aim

A
  • establish effects of de-connection
  • prevalence of lateralisation of function
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7
Q

method

A
  • quasi experiment
  • 11 patients that had a commissurotomy
  • opportunity sampling
  • 2 had procedure long ago, 9 recently
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8
Q

procedure

A
  • ppts sat infront of a screen with hand hole to cover their hands
  • eye patch cover one eye
  • told to fixate on on position on screen
  • images flashed for 1/10th of a sec to either left or right visual field, also had objects behind screen that were by there hands which they couldn’t see
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9
Q

results

A
  • info received from one hemisphere isn’t available to the other;
    -> images shown in in left visual field couldn’t be named but could be drawn using left hand
    -> objects placed in right hand could be named but not picked out by left hand
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10
Q

conclusions

A
  • Hemispheres have different functions: only the left is able to produce language /spelling
  • The right hemisphere can recall & identify stimuli but can’t verbalise this
  • Hemispheres have independent perception, awareness & memory
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