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Event-Related Synchronization and Desynchronization of Alpha and Beta Waves in a Cognitive Task

  • Gert Pfurtscheller
  • Wolfgang Klimesch
Part of the Brain Dynamics book series (BD)

Abstract

Together with the discovery of alpha waves in human scalp electroencephalograms (EEG) by Berger (1930), blocking was reported in response to a light stimulation. Triggered by the pioneering research of Berger, other groups focused on blocking or desynchronization of alpha and beta waves after visual afferences as well as after somatosensory stimulation or movement (Jasper and Andrews 1938; Jasper and Penfield 1949; Gastaut et al., 1952; Chatrian et al., 1959). Besides these findings of alpha or beta wave attenuation after sensory stimulation or with voluntary movement, there were also reports of an enhancement of alpha band activity as a response to visual stimulation (Morrell, 1966; Creutzfeldt et al., 1969) and tactile stimulation (Kreitman and Shaw, 1965).

Keywords

Visual Stimulation Reading Task Alpha Rhythm Alpha Band Alpha Power 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Gert Pfurtscheller
  • Wolfgang Klimesch

There are no affiliations available

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