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Curr Opin Physiol. 2019 Apr;8:177-187. doi: 10.1016/j.cophys.2019.03.005. Epub 2019 Mar 22.

Gain control in the sensorimotor system.

Author information

1
Molecular Neurobiology Laboratory, Salk Institute for Biological Studies, 10010 N. Torrey Pines Road, La Jolla, CA 92037, USA.
2
Department of Neurophysiology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo 187-8502, Japan.

Abstract

Coordinated movement depends on constant interaction between neural circuits that produce motor output and those that report sensory consequences. Fundamental to this process are mechanisms for controlling the influence that sensory signals have on motor pathways - for example, reducing feedback gains when they are disruptive and increasing gains when advantageous. Sensory gain control comes in many forms and serves diverse purposes - in some cases sensory input is attenuated to maintain movement stability and filter out irrelevant or self-generated signals, or enhanced to facilitate salient signals for improved movement execution and adaptation. The ubiquitous presence of sensory gain control across species at multiple levels of the nervous system reflects the importance of tuning the impact that feedback information has on behavioral output.

KEYWORDS:

gain control; motor corrections; motor output; movement stability; reafference; sensorimotor adaptation; sensory feedback

PMID:
31403088
PMCID:
PMC6688851
[Available on 2020-04-01]
DOI:
10.1016/j.cophys.2019.03.005

Conflict of interest statement

We wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.

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