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Command Interneurons in the Crayfish Central Nervous System

Atwood, H. L. and Wiersma, C. A. G. (1967) Command Interneurons in the Crayfish Central Nervous System. Journal of Experimental Biology, 46 (2). pp. 249-261. ISSN 0022-0949.

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The motor effects evoked by stimulation of each of eight command fibres in the circumoesophageal commissures of the crayfish are described. The fibres obtained appeared to have widespread connexions in all or most of the lower ganglia. For certain fibres the response was stronger on the homolateral side of the animal; for others it was symmetrical. The frequency of stimulation of a command fibre generally had a pronounced influence on the speed of the evoked response. In addition, segments of the total response could be elicited selectively by alteration of the frequency and duration of stimulation. Although the responses associated with most of the fibres were not sensitive to the fine temporal pattern of the applied stimulation, for one fibre the motor output depended clearly on the spacing of the stimulating pulses.

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Additional Information:© 1967 Company of Biologists. Received 24 October 1966. Supported by grant GB-2785 from the National Science Foundation and grant NB-03627 from the National Institutes of Health, Public Health Service.
Funding AgencyGrant Number
NIH Public Health ServiceNB-03627
Issue or Number:2
Record Number:CaltechAUTHORS:20120815-091637081
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Official Citation: H. L. ATWOOD and C. A. G. WIERSMA Command Interneurons in the Crayfish Central Nervous System J Exp Biol 1967 46:249-261.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:33198
Deposited By: Ruth Sustaita
Deposited On:15 Aug 2012 16:44
Last Modified:03 Oct 2019 04:07

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