| Individual differences in brain dynamics: important implications for the calculation of event-related band power. | |
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MedLine Citation:
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PMID: 9742677 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Measures of event-related band power such as event-related desynchronization (ERD) are conventionally analyzed within fixed frequency bands, although it is known that EEG frequency varies as a function of a variety of factors. The question of how to determine these frequency bands for ERD analyses is discussed and a new method is proposed. The rationale of this new method is to adjust the frequency bands to the individual alpha frequency (IAF) for each subject and to determine the bandwidth for the alpha and theta bands as a percentage of IAF. As an example, if IAF equals 12 Hz, the widths of the alpha and theta bands are larger as compared to a subject with an IAF of, e.g., only 8 Hz. The results of an oddball paradigm show that the proposed method is superior to methods that are based on fixed frequencies and fixed bandwidths. |
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Authors:
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M Doppelmayr; W Klimesch; T Pachinger; B Ripper |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biological cybernetics Volume: 79 ISSN: 0340-1200 ISO Abbreviation: Biol Cybern Publication Date: 1998 Jul |
Date Detail:
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Created Date: 1998-10-09 Completed Date: 1998-10-09 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 7502533 Medline TA: Biol Cybern Country: GERMANY |
Other Details:
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Languages: eng Pagination: 49-57 Citation Subset: IM |
Affiliation:
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Department of Physiological Psychology, University of Salzburg, Austria. michael.doppelmayr@sbg.ac.at |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Alpha Rhythm / statistics & numerical data Brain / physiology* Cybernetics Electroencephalography / statistics & numerical data* Evoked Potentials* Evoked Potentials, Visual Female Humans Male Models, Neurological Theta Rhythm / statistics & numerical data |
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