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Hemispheric Asymmetries in Schizophrenia.
Biological Psychiatry
  • David B. Newlin
  • Bruce Carpenter
  • Charles J. Golden, Nova Southeastern University
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Critically reviews the growing literature on hemispheric asymmetries in schizophrenic populations. Studies of lateral asymmetries in schizophrenics are discussed that have employed a wide range of methodologies, including assessment of motor, sensory, electrophysiological, neuropsychological, and structural abnormalities. This research is discussed in relation to 2 theoretical viewpoints, one emphasizing impaired functioning of the corpus callosum and the other positing left hemisphere overactivation and dysfunction in schizophrenic populations. It is concluded that the hypothesis of impaired callosal function has not been adequately tested because of methodological problems, the most serious of which is the failure to show differential deficit. The hypothesis of left hemisphere abnormality has gained consistent support, although methodological problems are noted. This research suggests a structural locus for schizophrenic pathology, which is consistent with the symptomatology of the disorder, and provides avenues for further research. (93 ref)
Citation Information
David B. Newlin, Bruce Carpenter and Charles J. Golden. "Hemispheric Asymmetries in Schizophrenia." Biological Psychiatry Vol. 16 Iss. 6 (1981) p. 561 - 582 ISSN: 0006-3223
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