| Alien hand syndrome: influence of neglect on the clinical presentation of frontal and callosal variants. | |
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MedLine Citation:
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PMID: 9220259 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Three patients with mesial frontal and extensive callosal lesions due to anterior cerebral artery infarction manifested an alien hand syndrome (AHS) with varied features. Patient 1 with left hemispheric lesion showed right hand's impulsive reaching and grasping and left hand's antagonistic movements to the right (intermanual conflict; IMC). Patients 2 and 3 with right hemispheric lesion manifested a left hemihypokinesia which was thought to have suppressed the frequency and amplitude or even the occurrence of left hand's reaching and grasping. IMC and other left hand's non-antagonistic, irrelevant movements to the right remained. Because the term "IMC" is often misused and not strictly defined, its association with right hand's reaching and grasping is quite uncommon, its significance as a sign of callosal disconnection is not well validated, and because left hand's reaching and grasping tend to be suppressed by motor neglect, a trend may then develop for the right hand to be the sole focus of pathological behaviour in patients with the so-called frontal AHS (Feinberg, Schindler, Flanagan et al., 1992). |
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Authors:
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J L Chan; E D Ross |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Cortex; a journal devoted to the study of the nervous system and behavior Volume: 33 ISSN: 0010-9452 ISO Abbreviation: Cortex Publication Date: 1997 Jun |
Date Detail:
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Created Date: 1997-08-28 Completed Date: 1997-08-28 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0100725 Medline TA: Cortex Country: ITALY |
Other Details:
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Languages: eng Pagination: 287-99 Citation Subset: IM |
Affiliation:
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Department of Neurology, Chang Gung Memorial Hospital, Taipei, Taiwan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Agnosia / diagnosis, physiopathology*, psychology Apraxias / diagnosis, physiopathology, psychology Attention / physiology* Awareness / physiology* Brain Damage, Chronic / diagnosis, physiopathology, psychology Brain Mapping Cerebral Infarction / diagnosis*, physiopathology, psychology Corpus Callosum / physiopathology* Female Frontal Lobe / physiopathology* Functional Laterality / physiology* Hand / innervation Humans Male Middle Aged Neuropsychological Tests Psychomotor Performance / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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