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| Research article summary (published Mar 2003): |
Gamma-band EEGs predict autonomic responses during mental arithmetic.
Full Abstract
Relationship between gamma-band (20-80 Hz) EEGs and autonomic functions (heart rate, blood pressure, instantaneous lung flow) in a mental arithmetic task (MAT) were investigated. Subjects were instructed to add 2 integers after presentation of audio voices indicating the integers in the MAT, and to listen to the same voices without mental arithmetic in the control task. The gamma-EEGs and autonomic functions coherently changed in response to the voices before mental arithmetic in the MAT. Furthermore, an increase in gamma-EEGs went ahead of the autonomic fluctuation. The results suggest that the gamma-band activity modulates and adjusts peripheral autonomic functions in advance before actual mental activity. This is the first demonstration that cortical gamma-band activity triggers peripheral autonomic responses during mental activity.
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Author information
Author/s: Umeno, Katsumi (K); Hori, Etsuro (E); Tabuchi, Eiichi (E); Takakura, Hiromasa (H); Miyamoto, Keiichi (K); Ono, Taketoshi (T); Nishijo, Hisao (H);
Affiliation: Department of Physiology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, Japan.
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Neuroreport (Neuroreport), published in England. (Language: eng)
Reference: 2003-Mar; vol 14 (issue 3) : pp 477-80
Dates: Created 2003/03/13; Completed 2003/05/13; Revised 2006/11/15;
PMID: 12634507, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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