What was Roger Sperry contribution to psychology?

Psychobiologist Roger Sperry discovered that human beings are of two minds. He found that the human brain has specialized functions on the right and left, and that the two sides can operate practically independently.

What is Roger Sperry best known for?

Sperry received the 1981 Nobel Prize in Physiology or Medicine for his split-brain research. Sperry discovered that the left hemisphere of the brain was responsible for language understanding and articulation, while the right hemisphere could recognize a word, but could not articulate it.

What did Michael Gazzaniga do with split-brain patients?

In the 1960s, a young neuroscientist named Michael Gazzaniga began a series of experiments with split-brain patients that would change our understanding of the human brain forever. If allowed to respond nonverbally, however, the right brain could adeptly point at or draw what was seen by the left eye.

What did Sperry and Gazzaniga study about the brain?

In Sperry and Gazzaniga’s “The Split Brain in Man” experiment published in Scientific American in 1967 they attempted to explore the extent to which two halves of the human brain were able to function independently and whether or not they had separate and unique abilities.

What did Gazzaniga prove?

In their canonical work, Sperry and Gazzaniga discovered that split-brain patients can only respond to stimuli in the right visual field with their right hand and vice versa. This was taken as evidence that severing the corpus callosum causes each hemisphere to gain its own consciousness.

What happens if your brain is split in two?

A structure known as the corpus callosum connects the left and right hemispheres of the brain and enables communication between them. Dysfunction or absence of this structure can result in a condition known as split-brain syndrome, in which each hemisphere of the brain functions independently.

What is Callosal syndrome?

Callosal syndrome, or split-brain, is an example of a disconnection syndrome from damage to the corpus callosum between the two hemispheres of the brain. Disconnection syndrome can also lead to aphasia, left-sided apraxia, and tactile aphasia, among other symptoms.

What did Charles Sperry do in his experiments?

Sperry experimented with cats, monkeys, and humans. His experiments started with split-brain cats. He closed one of their eyes and presented them with two different blocks, one of which had food under it. After that, he switched the eye patch to the other eye of the cat and put the food under the other block.

What did Roger Sperry discover about the split brain?

Sperry discovered that the left hemisphere of the brain was responsible for language understanding and articulation, while the right hemisphere could recognize a word, but could not articulate it. Many researchers repeated Sperry´sf experiments to study the split-brain patterns and lateralization of function.

How did Sperry study the function of the corpus callosum?

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.

Who was the winner of the split brain experiment?

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