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J Comp Physiol A. 1992 Oct;171(3):373-85.

Water-flow sensitive pedal neurons in Tritonia: role in rheotaxis.

Author information

1
Department of Zoology, University of Washington, Seattle 98195.

Abstract

We have identified 13 pairs of neurons in the pedal ganglia of the marine nudibranch slug Tritonia diomedea that responded tonically and/or phasically to water-flow directed at the rhinophore sheaths and oral veil tips. Most of the neurons responded equally to inputs from either side of the body, but 6 pairs responded with greater intensity to ipsilateral water-flow stimuli. When stimulated intracellularly in a semi-intact, whole-animal preparation, 4 of these 6 pairs of neurons caused ipsilateral movements that may turn the animal towards that side. These observations suggest a role for these current-sensitive neurons in the previously described orientation to water-currents in Tritonia diomedea.

PMID:
1447725
[Indexed for MEDLINE]

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