Identifiable cerebral motoneurons mediating an anterior tentacular withdrawal reflex in Aplysia
- 1 May 1977
- journal article
- research article
- Published by American Physiological Society in Journal of Neurophysiology
- Vol. 40 (3) , 608-615
- https://doi.org/10.1152/jn.1977.40.3.608
Abstract
The mechanosensory and motor properties of a pair of identified clusters of neurons in the cerebral ganglion of Aplysia were examined. Tactile stimulation of either anterior tentacle produces EPSP [excitatory postsynaptic potential] and spikes in the cerebral B neurons. This is followed by contraction of both tentacles. This reflex is centrally mediated. Bathing the CNS in high Mg2+ seawater totally blocks the reflex, whereas bathing the anterior tentacle blocks the tentacular contraction but not the synaptic response in the B neurons. If these neurons are stimulated intracellularly there is a contraction of the ipsilateral tentacle. Bathing the CNS in high Mg2+ seawater does not block the intracellularly evoked contraction indicating that there are no interposed central neurons. The B neurons are motor neurons mediating an anterior tentacular withdrawal reflex.This publication has 1 reference indexed in Scilit:
- Patterns of response of neurons in the cerebral ganglion of Aplysia californicaExperimental Neurology, 1967