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- Split-brain abstract "Split-brain is a lay term to describe the result when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of or interference with the connection between the hemispheres of the brain. The surgical operation to produce this condition results from transection of the corpus callosum, and is usually a last resort to treat refractory epilepsy. Initially, partial callosotomies are performed; if this operation does not succeed, a complete callosotomy is performed to mitigate the risk of accidental physical injury by reducing the severity and violence of epileptic seizures. Before using callosotomies, epilepsy is instead treated through pharmaceutical means. After surgery, neuropsychological assessments are often performed.After the right and left brain are separated, each hemisphere will have its own separate perception, concepts, and impulses to act. Having two "brains" in one body can create some interesting dilemmas. When one split-brain patient dressed himself, he sometimes pulled his pants up with one hand (that side of his brain wanted to get dressed) and down with the other (this side didn't). Also, once he grabbed his wife with his left hand and shook her violently. So his right hand came to her aid and grabbed the aggressive left hand. However, such conflicts are actually rare. If a conflict arises, one hemisphere usually overrides the other.When split-brain patients are shown an image only in their left visual field (the left half of what both eyes take in (see optic tract)), they cannot vocally name what they have seen. This can be explained in three steps: (1) The image seen in the left visual field is sent only to the right side of the brain; (2) For most people, the speech-control center is on the left side of the brain; and (3) Communication between the two sides of the brain is inhibited. Thus, the patient cannot say out loud the name of that which the right side of the brain is seeing. In the case that the speech-control center is on the right side of the brain, the image must now be presented to only the right visual field to achieve the same effect.If a split-brain patient is touching a mysterious object with only the left hand, while also receiving no visual cues in the right visual field, the patient cannot say out loud the name of that which the right side of the brain is touching. This can be explained in three steps: (1) Each cerebral hemisphere of the primary somatosensory cortex only contains a tactile representation of the opposite (contralateral) side of the body; (2) For most humans, the speech-control center is on the left side of the brain; and (3) Communication between the two sides of the brain is inhibited. In the case that the speech-control center is on the right side of the brain, the object must now be touched only with the right hand to achieve the same effect.The same effect occurs for visual pairs and reasoning. For example, a patient with split brain is shown a picture of a chicken and a snowy field in separate visual fields and asked to choose from a list of words the best association with the pictures. The patient would choose a chicken foot to associate with the chicken and a shovel to associate with the snow; however, when asked to reason why the patient chose the shovel, the response would relate to the chicken (e.g. "the shovel is for cleaning out the chicken coop")."Scientists have often wondered whether split-brain patients, who have had the two hemispheres of their brain surgically disconnected, are 'of two minds'" (Zilmer, 2001).".
- Split-brain wikiPageExternalLink split%20brain%20syndrome.html.
- Split-brain wikiPageExternalLink ref130.htm.
- Split-brain wikiPageID "490258".
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- Split-brain wikiPageOutDegree "32".
- Split-brain wikiPageRevisionID "683477611".
- Split-brain wikiPageWikiLink Anatomical_terms_of_location.
- Split-brain wikiPageWikiLink Atrophy.
- Split-brain wikiPageWikiLink California_Institute_of_Technology.
- Split-brain wikiPageWikiLink Caltech.
- Split-brain wikiPageWikiLink Category:Consciousness_studies.
- Split-brain wikiPageWikiLink Category:Neuroscience.
- Split-brain wikiPageWikiLink Category:Neurosurgery.
- Split-brain wikiPageWikiLink Cerebral_cortex.
- Split-brain wikiPageWikiLink Cerebral_hemisphere.
- Split-brain wikiPageWikiLink Confabulation.
- Split-brain wikiPageWikiLink Contralateral.
- Split-brain wikiPageWikiLink Convulsion.
- Split-brain wikiPageWikiLink Corpus_callosotomy.
- Split-brain wikiPageWikiLink Corpus_callosum.
- Split-brain wikiPageWikiLink Dual_brain_theory.
- Split-brain wikiPageWikiLink Encephalocele.
- Split-brain wikiPageWikiLink Epilepsy.
- Split-brain wikiPageWikiLink Epileptic_seizure.
- Split-brain wikiPageWikiLink Epileptic_seizures.
- Split-brain wikiPageWikiLink Hemispherectomy.
- Split-brain wikiPageWikiLink Hypesthesia.
- Split-brain wikiPageWikiLink Hypoesthesia.
- Split-brain wikiPageWikiLink Interthalamic_adhesion.
- Split-brain wikiPageWikiLink Kim_Peek.
- Split-brain wikiPageWikiLink Language.
- Split-brain wikiPageWikiLink Lateralization_of_brain_function.
- Split-brain wikiPageWikiLink Massa_intermedia.
- Split-brain wikiPageWikiLink Michael_Gazzaniga.
- Split-brain wikiPageWikiLink Mirror_test.
- Split-brain wikiPageWikiLink Optic_tract.
- Split-brain wikiPageWikiLink Postcentral_gyrus.
- Split-brain wikiPageWikiLink Roger_Sperry.
- Split-brain wikiPageWikiLink Roger_Wolcott_Sperry.
- Split-brain wikiPageWikiLink Savant_syndrome.
- Split-brain wikiPageWikiLink Scientific_American.
- Split-brain wikiPageWikiLink Self-recognition.
- Split-brain wikiPageWikiLink Somatosensory_cortex.
- Split-brain wikiPageWikiLink Splenium.
- Split-brain wikiPageWikiLinkText "Split-brain".
- Split-brain wikiPageWikiLinkText "split brain".
- Split-brain wikiPageWikiLinkText "split-brain research".
- Split-brain wikiPageWikiLinkText "split-brain".
- Split-brain hasPhotoCollection Split-brain.
- Split-brain wikiPageUsesTemplate Template:About.
- Split-brain wikiPageUsesTemplate Template:Authority_control.
- Split-brain wikiPageUsesTemplate Template:Reflist.
- Split-brain subject Category:Consciousness_studies.
- Split-brain subject Category:Neuroscience.
- Split-brain subject Category:Neurosurgery.
- Split-brain type Article.
- Split-brain type Article.
- Split-brain type Specialty.
- Split-brain type Thing.
- Split-brain comment "Split-brain is a lay term to describe the result when the corpus callosum connecting the two hemispheres of the brain is severed to some degree. It is an association of symptoms produced by disruption of or interference with the connection between the hemispheres of the brain. The surgical operation to produce this condition results from transection of the corpus callosum, and is usually a last resort to treat refractory epilepsy.".
- Split-brain label "Split-brain".
- Split-brain sameAs Syndrom_oddělených_hemisfér.
- Split-brain sameAs Split_Brain.
- Split-brain sameAs מוח_חצוי.
- Split-brain sameAs Agyhasítás.
- Split-brain sameAs 分離脳.
- Split-brain sameAs Gespleten_brein.
- Split-brain sameAs m.02gr13.
- Split-brain sameAs Split-brain.
- Split-brain sameAs Q551840.
- Split-brain sameAs Q551840.
- Split-brain sameAs 裂腦實驗.
- Split-brain wasDerivedFrom Split-brain?oldid=683477611.
- Split-brain isPrimaryTopicOf Split-brain.