| Imitating versus non-imitating movements: differences in frontal electroencephalographic oscillatory activity. | |
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MedLine Citation:
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PMID: 16483718 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Non phase-locked oscillatory changes were studied in seven healthy volunteers during two different reaction time movement paradigms, in which the stimulus was a wrist movement (either extension or flexion) performed by another person seated in front of the subject (examiner). In the first paradigm (imitation), the subject was instructed to perform the same movement observed. In the second paradigm (non-imitation), the subject was instructed to perform the opposite movement (flexion when an extension was observed, and vice-versa). Changes in the 7-37 Hz range band were determined by means of Gabor transforms. A frontal energy increase (event-related synchronization, ERS) around 15 Hz could be observed in the frontal region after the examiner's movement; this frontal ERS was significantly larger in the non-imitation paradigm. A typical alpha and beta movement-related event-related desynchronization/synchronization (ERD/ERS) pattern was also observed in both paradigms in the central region. The beta-ERD was significantly larger in the imitation paradigm. Our results show that the motor preparation mechanisms involved in an imitated and a non-imitated movement are different. |
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Authors:
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M Alegre; D Lázaro; M Valencia; J Iriarte; J Artieda |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2006-02-17 |
Journal Detail:
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Title: Neuroscience letters Volume: 398 ISSN: 0304-3940 ISO Abbreviation: Neurosci. Lett. Publication Date: 2006 May |
Date Detail:
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Created Date: 2006-04-25 Completed Date: 2006-06-08 Revised Date: 2006-11-15 |
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: 201-5 Citation Subset: IM |
Affiliation:
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Neurophysiology Section, Department of Neurology, Clínica Universitaria, Universidad de Navarra, Pío XII 36, 31008 Pamplona, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Beta Rhythm Brain Mapping* Cortical Synchronization Electroencephalography* Female Frontal Lobe / physiology* Humans Imitative Behavior* Male Movement* Psychomotor Performance* Reaction Time Wrist / physiology |
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