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Brain Res. 1987 Mar 3;405(1):187-91.

Intercostal muscles and purring in the cat: the influence of afferent inputs.

Abstract

Feline purring has previously been reported as originating in a central oscillator, independent of afferent inputs, and also as not involving expiratory muscles. Here we show, via electromyographic recordings from intercostal muscles, quantified by cross-correlation, that expiratory muscles can be involved and that even if the oscillator is central, reflex components nevertheless play a considerable part in the production of the periodic pattern of muscle activation seen during purring.

PMID:
3032349
[Indexed for MEDLINE]

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