Split-brain

of the brain or more of the right side” was concluded by Dr. Gayatri Devi, the professor of neurology at New York (“Left brain right brain theory”). This is a reference to the myth that people think they are more dominant on their left side of their brain and vice versa. The split-brain theory, better known as the left-brain, right-brain theory, is a theory that distinguishes people as “left brained” or “right brained”, which had originated when neurological patients’ left side and right side of their brain was surgically disconnected. This became more significant in the 1960’s and 1970’s when neuropsychologist Roger W. Sperry conducted 16 split-brain operations…

Introduction The human brain can be divided in terms of its structure as well as function. Structurally under the cranium of any human being exists a brain with two plainly visible parts, each about the size of a fist, known as the right and the left hemispheres of the cerebral cortex. Even though these two hemispheres appear identical in terms of structure, they perform distinct functions. Split-brain studies and cognitive research has indicated that the left hemisphere is associated with…

The brain split case was first discovered in the laboratory by Roger Sperry and Ronal Meyers. The brain split was first tested on humans in 1961. Patients were not capable to transport most of the data starting with one half of the their head to the other. This meant that there were two differentiate brains. Micheal Gazzaniga completed further analyses which demonstrated the left side of the hemisphere on adjusting for its absence of information, and additionally endeavors toward the right side…

What Does it Mean to Have a Split Brain? By Amanda Larkin Psychophysiology January 10, 2015 California Baptist University In order to understand the concept of a Split Brian, we must know the functions of the corpus callosum. The corpus callosum is located at the center of the brain, just beneath the cerebrum. The corpus callosum allows sensory and cognitive information to enter a passageway through the two separate hemispheres of the brain. The corpus callosum enables the right and…

Schizophrenia, meaning “split mind,” is a disorder of the brain that results in numerous symptoms including slurred speech, catatonic movements, difficulty expressing emotions, hallucinations, delusions, disinterest, confused behaviors, and decreased motivation. For a disorder that has this variety of symptoms, numerous areas of the brain and the mechanisms that aid the brain, including neurotransmitters, must be affected. Looking at the symptoms of schizophrenia and the roles of several parts…

spatial selective attention between “neurologically normal young adults” and split-brain subjects by measuring response times when presented unilateral and bilateral visual arrays. 2. The purpose for this experiment was to gather information about spatial selective attention, and to investigate whether “an independent focus of attention is deployed by each surgically separated hemisphere in a visual search task, such that bilateral stimulus arrays can be scanned at a faster rate by split brain…

Article Summary An interesting study authored by Goel (2015) scrutinized the multitude of literature from split-brain patients and concluded the hemispheric dissimilarity in the efficient organization of prefrontal cortex (PFC) has not been established and investigated thoroughly. Research primarily restricted the role of the right hemisphere (RH) to little more than the visual organization. The literature with split-brain individuals offers substantial evidence for a left hemisphere (LH)…

1.) Split Brain - In this zaps activity I played the role of an experimenter in the experimental setup that was created by Gazzaniga and his colleagues. In this experimental setup, a split-brain patient sits in front of two screens that are side by side and behind those screens there are a collection of objects. The patient is then asked to reach under the screens to get a hold of the identified object with either their left or right hand. In this activity I had the opportunity to be the…

The corpus callosum is an area of the brain that connects the left and right hemispheres in order allow communication throughout different sections of a brain. This acts as the main communication pathway in order to coordinate different sections of the brain to perform various tasks. Proper development of this portion of the brain is vital to ensure that no major abnormalities may cause possible issues in longterm development. If it fails to develop by either not being able to grow properly or…

The Split-Brain study was conducted by Michael Gazzaniga and Roger Sperry. The motivation for the research to do the study in the first place when Sperry and Ronald Myers made a discovery that when the two hemispheres were incised, they saw that “each hemisphere functioned independently as if it were a complete brain” (Gazzaniga). Before the study was done, what the researchers had known about the topic came from Sperry and Myers discovery, research from animal studies, and humans who had…