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split brain research

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Split-Brain Research The following presents a discussion of Nobel Laureate Roger Sperry\'swork in split-brain research Roger Sperry and split-brain the split-brain experiments are discussed and related information are provided Thisis followed by a conclusion In the s split-brain operations were carried out to help preventepilepsy attacks that were too severe to be helped by medication Theoperation was designed to stop the spread of an electrical discharge formone side of the brain to the other When the corpus callosum is severed the electrical

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The split brain experiments. (2 8). Nobel lecture, 8 December 1981. Study resultsshowed that each hemisphere is related to specialized tasks and the leftside of the brain is associated with analytical and verbal tasks. The patient would not be able toreport what she saw if the information was received by the non-verbal righthemisphere of the brain (Collins, 2 8). Sperry concluded thatstudy results helped to resolve the mind-brain problem, with support forthe understanding that inner experience interacts with brain function andbehavior. Theright half of the brain is linked to space perception and music. (2 8b). During the Nobel Lecture in 1981, Sperry reported that an importantoutcome of the split-brain work is the revised notion related to the natureof consciousness and its relation to the brain processing. Forexample, it is important to understand that the right hemispherespecializes in functions that allow for facial recognition, dressing,drawing dimensional cubes, making block designs, and more which make up aperson's inner experience and affect brain processing. This led to a further understanding of the processing that goeson in the brain, to include cognitive processing. When the corpus callosum is severed,the electrical discharges do not cross to the other side of the brain,which reduces epileptic attacks while preserving sensory, motor, andcognitive functioning. Instead ofviewing this processing from a non-causal stance, a new causal andinteraction interpretation came to the forefront. When the retinal image isinverted, the left visual field side connects with the right brain side andsplit-brain patients are unable to pass an image to the other hemisphereswhen the corpus callosum is cut. In other words, Sperrystated that inner experience is a property of the brain processes and thisis an explanatory variable and causal construct with related laws anddynamics (Nobel Prize Organization, 2 8b). Retrieved December 2, 2 8, from http://nobelprize.org/nobel_prizes/medicine/laureates/1981/sperry- lecture.html Thisis followed by a conclusion. Theoperation was designed to stop the spread of an electrical discharge formone side of the brain to the other. ReferencesCollins, C. Thus, a standard split-brain studyincluded a split-brain patient sitting in the front of a screen with handshidden from view. Sperry believed that the severing or removal ofthis pathway affects behavior and he designed a test to investigate thistheory (Collins, 2 8). (2 8a). The experiments included a test based on the anatomy of the visualsystem, which is the most complex in the body since the eyes are notdirectly crossed; the left side of the retina is connected to the left sideof the brain and the right side is similar. The experiments conducted in the 196 s by Sperry allowed for anunderstanding that the language center of the brain is located in the lefthemisphere. Thepatient was to focus her eyes on the screen center while a word was flashedon the screen in the left visual field. These findings resulted in Sperry being awarded the NobelPrize in Physiology or Medicine in 1981 (Nobel Prize Organization, 2 8a).These slit brain experiments helped split brain patients and revealedinformation about the left and right brain hemispheres. The rightside can only produce rudimentary words and phrases but is linked toemotional context in language. The left side enables a person to read aword but the right side enables the person to imagine what the word means(Nobel Prize Organization, 2 8a). In the 194 s, split-brain operations were carried out to help preventepilepsy attacks that were too severe to be helped by medication. Objects behind the screen were also out of sight. Split-Brain Research The following presents a discussion of Nobel Laureate Roger Sperry'swork in split-brain research. Roger Sperry and split-brain. With this new view, aninner experience is understood as being an important part of the control ofbrain function and behavior. Retrieved December 2, 2 8, from http://nobelprize.org/educational_games/medicine/split- brain/background.htmlNobel Prize Organization. Conclusions Sperry conducted split-brain experiments, which supported theconclusion that the right and left hemispheres of the brain have differentfunctions. This has helped to support cognitiveintrospective psychology and cognitive science. This leap is difficult to understand at first glance andrequires further understanding of right and left hemisphere functions. Retrieved December 2, 2 8, from http://www.scienceray.com/Philosophy-of-Science/Roger- Sperry-and-Split-brain.359141Nobel Prize Organization. Roger Sperry and split-brain, the split-brain experiments are discussed and related information are provided.

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