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Oscillatory interactions between sensorimotor cortex and the periphery

Lookup NU author(s): Professor Stuart Baker

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Abstract

Field potential recordings from motor cortex show oscillations in the beta-band (∼20 Hz), which are coherent with similar oscillations in the activity of contralateral contracting muscles. Recent findings have revised concepts of how this activity might be generated in the cortex, suggesting it could achieve useful computation. Other evidence shows that these oscillations engage not just motor structures, but also return from muscle to the central nervous system via feedback afferent pathways. Somatosensory cortex has strong beta-band oscillations, which are synchronised with those in motor cortex, allowing oscillatory sensory reafference to be interpreted in the context of the oscillatory motor command which produced it. © 2008 Elsevier Ltd. All rights reserved.


Publication metadata

Author(s): Baker SN

Publication type: Review

Publication status: Published

Journal: Current Opinion in Neurobiology

Year: 2007

Volume: 17

Issue: 6

Pages: 649-655

Print publication date: 01/12/2007

ISSN (print): 0959-4388

ISSN (electronic): 1873-6882

URL: http://dx.doi.org/10.1016/j.conb.2008.01.007

DOI: 10.1016/j.conb.2008.01.007

PubMed id: 18339546


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