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Curr Opin Neurobiol. 1997 Dec;7(6):820-5.

Serotonin and motor activity.

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1
Program in Neuroscience, Princeton University, New Jersey 08544-1010, USA. barryj@phoenix.princeton.edu

Abstract

The activity of brain serotonergic neurons in both the pontine-mesencephalic and medullary groups is positively correlated with the level of behavioral arousal and/or the behavioral state. This, in turn, appears to be related to the level of tonic motor activity, especially as manifested in antigravity muscles and other muscle groups associated with gross motor activity. In addition, a subset of serotonergic neurons displays a further increase in activity in association with repetitive, central pattern generator mediated responses. Accumulating evidence indicates that this relation to motor activity is related both to the co-activation of the sympathetic nervous system and to the modulation of afferent inputs.

PMID:
9464975
[Indexed for MEDLINE]
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