Sperry’s research
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- שקופית: 1
- 1968
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- To do this, he sampled 11 patients who had undergone surgery for severe epilepsy. Nine had surgery recently whereas two had surgery some time before and had an excellent recovery.
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- Sperry asked patients to fix their eye gaze on a particular spot and then projected words or pictures for 1/10th of a second (too fast for eye movements). This way he could be sure that the information only entered either the left or right hemisphere.
- Sperry asked patients to fix their eye gaze on a particular spot and then projected words or pictures for 1/10th of a second (too fast for eye movements). This way he could be sure that the information only entered either the left or right hemisphere.
- שקופית: 4
- In 1968, Roger Sperry studied what effects could be seen in these patients by monitoring how they processed information using their ‘split-brain’. He was interested to see how the ‘split-brain’ worked compared to a normal brain.
- when information is presented in the right visual field so it is sent to the left hemisphere. Whereas, the information in the right image is being presented in the left visual field so is sent to the right hemisphere.The participants then had to say what word or picture they had seen on the screen.
- שקופית: 6
- In split-brain participants, each hemisphere can perceive and remember information presented only to that hemisphere.Verbal responses were only possible when information was presented to the left hemisphere.
- It means that hemispheric disconnection causes the two hemispheres to operate independently, each having its own consciousness, including perception and memory. This produces a 'doubling' of conscious awareness, as each hemisphere is unaware of the other. The right hemisphere, athough much less lingustic of the left, can use logic.
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