| Tight link between our sense of limb ownership and self-awareness of actions. | |
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MedLine Citation:
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PMID: 18162622 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Hemiparetic stroke patients with disturbed awareness for their motor weakness (anosognosia for hemiparesis/-plegia [AHP]) may exhibit further abnormal attitudes toward or perceptions of the affected limb(s). The present study investigated the clinical relationship and the anatomy of such abnormal attitudes and AHP. METHODS: In a new series of 79 consecutively admitted acute stroke patients with right brain damage and hemiparesis/-plegia, different types of abnormal attitudes toward the hemiparetic/plegic limb (asomatognosia, somatoparaphrenia, anosodiaphoria, misoplegia, personification, kinaesthetic hallucinations, supernumerary phantom limb) were investigated. RESULTS: Ninty-two percent of the patients with AHP showed additional "disturbed sensation of limb ownership" (DSO) for the paretic/plegic limb. The patients had the feeling that their contralesional limb(s) do not belong to their body or even belong to another person. Analysis of lesion location revealed that the right posterior insula is a crucial structure involved in these phenomena. CONCLUSIONS: DSO for hemiparetic/-plegic limbs and AHP are tightly linked both clinically and anatomically. The right posterior insula seems to be a crucial structure involved in the genesis of our sense of limb ownership and self-awareness of actions. |
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Authors:
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Bernhard Baier; Hans-Otto Karnath |
Publication Detail:
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Type: Letter; Research Support, Non-U.S. Gov't Date: 2007-12-27 |
Journal Detail:
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Title: Stroke; a journal of cerebral circulation Volume: 39 ISSN: 1524-4628 ISO Abbreviation: Stroke Publication Date: 2008 Feb |
Date Detail:
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Created Date: 2008-01-29 Completed Date: 2008-02-20 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0235266 Medline TA: Stroke Country: United States |
Other Details:
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Languages: eng Pagination: 486-8 Citation Subset: IM |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Acute Disease Aged Aged, 80 and over Agnosia* Body Image* Cerebral Cortex / physiopathology Female Functional Laterality Hallucinations / physiopathology, psychology Hemiplegia / physiopathology*, psychology* Humans Male Middle Aged Paresis / physiopathology*, psychology* Perception Stroke / physiopathology, psychology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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