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| Research article summary (published 27 Feb 2003): |
Enhancing cognitive performance with repetitive transcranial magnetic stimulation at human individual alpha frequency.
Full Abstract
We applied rapid-rate repetitive transcranial magnetic stimulation (rTMS) at individual alpha frequency (IAF) to improve cognitive performance by influencing the dynamics of alpha desynchronization. Previous research indicates that a large upper alpha power in a reference interval preceding a task is related to both large suppression of upper alpha power during the task and good performance. Here, we tested the hypothesis that rTMS at individual upper alpha frequency (IAF + 1 Hz) can enhance alpha power in the reference interval, and can thus improve task performance. Repetitive TMS was delivered to the mesial frontal (Fz) and right parietal (P6) cortex, and as sham condition with 90 degrees-tilted coil (P6 position). The behavioural effect was assessed in a mental rotation task. Further control conditions were rTMS at a lower IAF (IAF - 3 Hz) and at 20 Hz. The results indicate that rTMS at IAF + 1 Hz can enhance task performance and, concomitantly, the extent of task-related alpha desynchronization. This provides further evidence for the functional relevance of oscillatory neuronal activity in the alpha band for the implementation of cognitive performance.
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Author information
Author/s: Klimesch, Wolfgang (W); Sauseng, Paul (P); Gerloff, Christian (C);
Affiliation: Department of Physiological Psychology, Institute of Psychology, University of Salzburg, Hellbrunnerstr 34, A-5020 Salzburg, Austria. wolfgang.klimesch@sbg.ac.at
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: The European journal of neuroscience (Eur J Neurosci), published in France. (Language: eng)
Reference: 2003-Mar; vol 17 (issue 5) : pp 1129-33
Dates: Created 2003/03/25; Completed 2003/05/15; Revised 2006/11/15;
PMID: 12653991, 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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