| Visually induced gamma-band responses to coherent and incoherent motion: a replication study. | |
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MedLine Citation:
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PMID: 9261830 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study was based on earlier findings that the observation of a coherently moving long bar induced gamma-band activity in humans. The power in the EEG-gamma-band was reduced during the presentation of two incoherently moving short bars. The present study demonstrates the replicability of this cortical activity pattern and illustrates intersubjective variability in its topography. In addition, cortical alpha-activity was examined to test whether gamma-band activity might reflect changes in harmonics of alpha waves. Results indicate that induced gamma-band activity cannot be secondary to changes in the amplitude of alpha waves, since the latter would require both a similar time course of both frequency bands while stimuli are in motion and an identical topographical pattern. The present results suggest that oscillations in the gamma- and the alpha-bands are two different brain activities, with different functional implications. |
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Authors:
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M M Müller; M Junghöfer; T Elbert; B Rochstroh |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Neuroreport Volume: 8 ISSN: 0959-4965 ISO Abbreviation: Neuroreport Publication Date: 1997 Jul |
Date Detail:
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Created Date: 1998-01-08 Completed Date: 1998-01-08 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9100935 Medline TA: Neuroreport Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 2575-9 Citation Subset: IM; S |
Affiliation:
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University of Konstanz, Department of Psychology, Germany. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Brain / physiology* Brain Mapping* Electroencephalography* Female Humans Motion Perception / physiology* Regression Analysis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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