| A new look at gamma? High- (>60 Hz) γ-band activity in cortical networks: Function, mechanisms and impairment. | |
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MedLine Citation:
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PMID: 21034768 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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γ-band oscillations are thought to play a crucial role in information processing in cortical networks. In addition to oscillatory activity between 30 and 60 Hz, current evidence from electro- and magnetoencephalography (EEG/MEG) and local-field potentials (LFPs) has consistently shown oscillations >60 Hz (high γ-band) whose function and generating mechanisms are unclear. In the present paper, we summarize data that highlights the importance of high γ-band activity for cortical computations through establishing correlations between the modulation of oscillations in the 60-200 Hz frequency and specific cognitive functions. Moreover, we will suggest that high γ-band activity is impaired in neuropsychiatric disorders, such as schizophrenia and epilepsy. In the final part of the paper, we will review physiological mechanisms underlying the generation of high γ-band oscillations and discuss the functional implications of low vs. high γ-band activity patterns in cortical networks. |
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Authors:
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Peter J Uhlhaas; Gordon Pipa; Sergio Neuenschwander; Michael Wibral; Wolf Singer |
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Publication Detail:
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Type: Journal Article Date: 2010-10-27 |
Journal Detail:
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Title: Progress in biophysics and molecular biology Volume: 105 ISSN: 1873-1732 ISO Abbreviation: Prog. Biophys. Mol. Biol. Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-02-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401233 Medline TA: Prog Biophys Mol Biol Country: England |
Other Details:
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Languages: eng Pagination: 14-28 Citation Subset: IM |
Copyright Information:
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Copyright © 2010. Published by Elsevier Ltd. |
Affiliation:
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Department of Neurophysiology, Max-Planck Institute for Brain Research, Deutschordenstr. 46, Frankfurt am Main 60528, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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