Gating of afferent input by a central pattern generator.

R A DiCaprio

doi:10.1152/jn.1999.81.2.950

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Gating of afferent input by a central pattern generator.

R A DiCaprio

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Abstract

Intracellular recordings from the sole proprioceptor (the oval organ) in the crab ventilatory system show that the nonspiking afferent fibers from this organ receive a cyclic hyperpolarizing inhibition in phase with the ventilatory motor pattern. Although depolarizing and hyperpolarizing current pulses injected into a single afferent will reset the ventilatory motor pattern, the inhibitory input is of sufficient magnitude to block afferent input to the ventilatory central pattern generator (CPG) for approximately 50% of the cycle period. It is proposed that this inhibitory input serves to gate sensory input to the ventilatory CPG to provide an unambiguous input to the ventilatory CPG.

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Afferent Pathways Animals Biological Clocks Brachyura Female Ganglia, Invertebrate In Vitro Techniques Instinct Male Membrane Potentials Neural Inhibition Periodicity Proprioception Journal Article Research Support, Non-U.S. Gov't

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R A DiCaprio. 1999. Gating of afferent input by a central pattern generator.. https://doi.org/10.1152/jn.1999.81.2.950

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