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  Previous issue (2007. Vol. 4, no. 4)

Psychology

Publisher: National Research University Higher School of Economics

ISSN: 1813-8918

Started in 2005

Published quarterly

 

The Role of Highfrequency Electrical Brain Activity in the Realization of Psychological Processes

Danilova N.N.
PhD in Psychology, Professor at the Psychology faculty, M.V. Lomonosov Moscow State University, Moscow, Russia
e-mail: danilovan@mail.ru

Abstract
The article discusses the mechanism concerning generation of gamma-oscillations. Latest researches demonstrate that gamma¬oscillations participate in the realization of different psychological processes, including enhancing attention and changing functional states, perception and working memory, processes of recognition and identification, awareness and semantic operations. The author discusses two hypotheses on the origin of gamma¬rhythm: pacemaker and binding. To analyse the problem, the author suggests a special method based on the narrow frequency filtering the socalled evoked gamma¬rhythm, localization of their dipole sources over the structural MRI data. The obtained results are compatible with the pacemaker hypothesis.

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