When they posed a question to the right side regarding what Paul wanted to be when he grew up, he replied that he wanted to be an automobile racer. This enabled the Gazzinga & Sperry to pose questions to each side of his brain. One of the case studies involved Paul S.,who was a child and had a fully functional language center in both right and left hemispheres.
However, when the subjects were able to reach out under the screen and touch the object with their left hand, they were able to identify what was shown in the picture. First, they showed the object only to their right hemisphere and received no response from their subjects at all. Lastly, the researchers combined both the tests. When the object was placed in the right hand, the left hemisphere was able to name and describe the object, but when placed in the left hand, the right hemisphere was neither able to name nor describe the object. Following this, the researchers flashed the bulbs only on their left visual field, and the subjects reported to not have seen any flash at all.Īfter the Visual Test, came the “Tactile Test,” where the experimenters placed objects both in their left and right hands, but the subjects were not able to see or hear it. The subjects reported seeing a flash only in their right visual field. In their experiments, the first of the tests was the “Visual Test,” where the subjects were asked to stare at a dot, while bulbs were flashed across their right and left visual fields. Gazzaniga and Sperry's research on split-brain research has achieved a legendary status.
This resulted in a type of split personality, where left hemisphere gave orders that were a reflection of the person’s rational goals, while the right hemisphere tended to issued demands that were conflicting, and which reveal their hidden desires. In these patients, they found that the right hemisphere, which had control over the left hand and the left foot, acted independently of the left hemisphere as well the patient’s ability to take rational decisions. They found that several patients who underwent a complete calloscotomy tended to suffer from the split-brain syndrome. Sperry were the first researchers to study split brains in human beings. However, when the corpus callosum was severed, it also resulted in the lack of communication between the right and the left hemispheres, and this lack of communication lead scientists to conduct more research on this matter. The first surgery was performed so as to control grand mal seizures, and it was deemed to be greatly successful. This results in either partial or complete disconnection between the right and the left hemispheres. Sadly, Kim passed away on Decemat the age of 58.Scientific studies on the phenomenon of split brain began in the early 1960s when the first corpus callosotomy was performed, which is a surgical procedure where part of or the entire corpus callosum is severed. Kaveggia in 1974, its major clinical features include intellectual disability, hyperactivity, hypotonia (low muscle tone), and a characteristic facial appearance including macrocephaly (an abnormally large head). First reported by American geneticists John M. FG syndrome was named after the first letters of the surnames of the first patients noted with the disease. Although Peek was the inspiration for the autistic savant character Raymond Babbitt in the movie Rain Man, it is now thought that Kim instead had FG syndrome (as a younger man he was diagnosed with autism however).įG syndrome (FGS) is a rare genetic syndrome caused by one or more recessive genes located on the X chromosome and causing physical anomalies and developmental delays. Known as a “megasavant”, he had an exceptional memory, but he also experienced social difficulties, possibly resulting from a developmental disability related to congenital brain abnormalities. Laurence Kim Peek, affectionately named Kim by his family and friends, was born on November 11, 1951. Kim Peek is the real man whom the award winning blockbuster Rain Man was (loosely) based on, and although “Rain Man” (Raymond Babbit) was shown to have autism, Kim’s extraordinary skills and talents turn out to be caused by something different.
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