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Curr Opin Neurobiol. 2010 Apr;20(2):156-65. doi: 10.1016/j.conb.2010.02.015. Epub 2010 Mar 30.

Beta-band oscillations--signalling the status quo?

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1
Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany. ak.engel@uke.de

Abstract

In this review, we consider the potential functional role of beta-band oscillations, which at present is not yet well understood. We discuss evidence from recent studies on top-down mechanisms involved in cognitive processing, on the motor system and on the pathophysiology of movement disorders that suggest a unifying hypothesis: beta-band activity seems related to the maintenance of the current sensorimotor or cognitive state. We hypothesize that beta oscillations and/or coupling in the beta-band are expressed more strongly if the maintenance of the status quo is intended or predicted, than if a change is expected. Moreover, we suggest that pathological enhancement of beta-band activity is likely to result in an abnormal persistence of the status quo and a deterioration of flexible behavioural and cognitive control.

PMID:
20359884
DOI:
10.1016/j.conb.2010.02.015
[Indexed for MEDLINE]
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