| Cortico-cortical networks in patients with ideomotor apraxia as revealed by EEG coherence analysis. | |
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MedLine Citation:
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PMID: 18249498 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We sought to determine whether coherent networks which circumvent lesioned cortex are seen in patients with ideomotor apraxia (IMA) while performing tool-use pantomimes. Five normal subjects and five patients with IMA (three patients with corticobasal degeneration and two with left hemisphere stroke) underwent 64-channel EEG recording while performing three tool-use pantomimes with their left hand in a self-paced manner. Beta band (20-22 Hz) coherence indicates that normal subjects have a dominant left hemisphere network responsible for praxis preparation, which was absent in patients. Corticobasal degeneration patients showed significant coherence increase between left parietal-right premotor areas. Left hemisphere stroke patients showed significant coherence increases in a right parietofrontal network. The right hemisphere appears to store useable praxis representations in IMA patients with left hemisphere damage. |
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Authors:
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Lewis A Wheaton; Stephan Bohlhalter; Guido Nolte; Hiroshi Shibasaki; Noriaki Hattori; Esteban Fridman; Sherry Vorbach; Jordan Grafman; Mark Hallett |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Intramural Date: 2008-01-12 |
Journal Detail:
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Title: Neuroscience letters Volume: 433 ISSN: 0304-3940 ISO Abbreviation: Neurosci. Lett. Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-02-29 Completed Date: 2008-06-12 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 7600130 Medline TA: Neurosci Lett Country: Ireland |
Other Details:
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Languages: eng Pagination: 87-92 Citation Subset: IM |
Affiliation:
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Human Motor Control Section, NINDS, NIH, Bethesda, MD 20892-1428, United States. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Apraxia, Ideomotor / pathology*, physiopathology* Cerebral Cortex / physiopathology* Electroencephalography* Functional Laterality / physiology Humans Middle Aged Nerve Net / physiopathology* Neurodegenerative Diseases / pathology, physiopathology Stroke / pathology, physiopathology |
| Grant Support | |
ID/Acronym/Agency:
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Z01 NS002669-23/NS/NINDS NIH HHS |
| Comments/Corrections | |
Erratum In:
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Neurosci Lett. 2009 Jan 16;449(3):259 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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