Command Interneurons in the Crayfish Central Nervous System*
Open Access
- 1 April 1967
- journal article
- research article
- Published by The Company of Biologists in Journal of Experimental Biology
- Vol. 46 (2) , 249-261
- https://doi.org/10.1242/jeb.46.2.249
Abstract
1. The motor effects evoked by stimulation of each of eight command fibres in the circumoesophageal commissures of the crayfish are described. 2. 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. 3. 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. 4. 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.This publication has 12 references indexed in Scilit:
- Nerve Impulse Patterns and Reflex Control in the Motor System of the Crayfish ClawJournal of Experimental Biology, 1965
- “Descending” neuronal units in the commissure of the crayfish central nervous system; and their integration of visual, tactile and proprioceptive stimuliJournal of Comparative Neurology, 1965
- Motor Output Patterns during Random and Rhythmic Stimulation of Locust Thoracic GangliaBiophysical Journal, 1965
- Soma potentials and modes of activation of crayfish motoneuronsJournal of Cellular and Comparative Physiology, 1964
- Interneurons commanding swimmeret movements in the crayfish, Procambarus clarki (girard)Comparative Biochemistry and Physiology, 1964
- THE ORGANIZATION OF THE ARTHROPOD CENTRAL NERVOUS SYSTEMAmerican Zoologist, 1962
- On the functional connections of single units in the central nervous system of the crayfish, Procambarus clarkii girardJournal of Comparative Neurology, 1958
- The central representation of sensory stimulation in the crayfishJournal of Cellular and Comparative Physiology, 1955
- NEURONS OF ARTHROPODSCold Spring Harbor Symposia on Quantitative Biology, 1952
- GIANT NERVE FIBER SYSTEM OF THE CRAYFISH. A CONTRIBUTION TO COMPARATIVE PHYSIOLOGY OF SYNAPSEJournal of Neurophysiology, 1947