BIOLOGICAL BASES OF BEHAVIOR
BIOLOGICAL PSYCHOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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People with split brains have two separate visual inner worlds, each with its own train of visual images.
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Split-brain patients have a lack of cross-integration where the second hemisphere does not know what the first hemisphere has been doing.
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Split-brain patients seem to have two independent streams of consciousness, each with its own memories, perceptions and impulses ie two minds in one body.
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The split-brain procedure improved people’s epilepsy.
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Detailed explanation-1: -Sperry concluded that even though there were no apparent signs of disability in people with a severed corpus callosum, the hemispheres did not communicate, so it compromised the full function of the brain. Sperry received the 1981 Nobel Prize in Physiology or Medicine for his split-brain research.
Detailed explanation-2: -Sperry severed the corpus callosum in cats and monkeys to study the function of each side of the brain. He found that if hemispheres were not connected, they functioned independently of one another, which he called a split-brain. The split-brain enabled animals to memorize double the information.
Detailed explanation-3: -The aim of Sperry (1968) was to show the independent streams of conscious awareness possessed by each hemisphere and to show how each hemisphere has its own memories.
Detailed explanation-4: -They showed that split-brain patients could accurately indicate the identity and shape of upper-and lower-case letters in either hemifield, regardless of with which hand they responded, for instance accurately identifying the letter A in the left visual field with the right hand.