Sperry
- Created by: Laurenmurphy2901
- Created on: 20-03-17 16:46
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- Sperry
- Aim
- To study the psychological effects of hemispheric disconnection in split-brain patients. To understand how the hemispheres function in 'normal' individuals.
- Research method
- Quasi
- Method
- IV: Severed corpus callosum or assumed control group
- DV: ability to perform visual and tactile tasks
- IV: Severed corpus callosum or assumed control group
- Sample
- 11 participants who were patients with severe epilepsy which could not be treated with drugs.
- 9 had been operated on too recently to carry out a therapeutic evaluation to determine whether any unintentional injury had been caused to the brain resulting in impairment in functioning beyond that caused by severing the corpus callosum. 2 of these patients were still experiencing seizures.
- 1 patient was a man who had been operated on 5 and a half years before who showed no symptoms of epilepsy and no significant impairments.
- 1 patient was a mother in her 30s who had been operated on over 4 years before and was also seizure-free
- Procedure
- Visual
- One of the participants eyes is covered, the P gazes at a fixation point on an upright translucent screen. Tachistoscope - 35mm slides arranged in a standard projector are projected either side of the fixation point (into one visual field or the other) for 1/10th second. To the left of the fixation point is the LVF, and to the right is the RVF.
- Tactile
- Untitled
- Visual
- Aim
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