PMID: 14408509Jan 1, 1960Paper

Activity patterns of interneurons in the caudal ganglion of the crayfish

The Journal of General Physiology
D KENNEDY, J B PRESTON

Abstract

Responses of ascending interneurons from the caudal ganglion of crayfish have been recorded from single units isolated by dissection from the ventral nerve cord; in addition, post-synaptic activity within the ganglionic neuropile has been studied with intracellular micropipettes. The following classes of interneurons have been found: (1) Large fibers which responded to tactile stimuli with single spikes or phasic bursts. These units usually showed broad receptive fields; and spontaneous activity, when present, showed transitory depressions following responses to natural stimuli. (2) A group of fibers, including many small ones, which responded to proprioceptive stimuli with tonic discharges of varying adaptation rate. (3) Interneurons which showed responses both to tactile stimuli and to activation of the sixth ganglion photoreceptor; and (4) units with constant frequency discharges which were unmodifiable by any of the above afferent inputs. Intracellular recording of post-synaptic activity has shown (1) that widely graded excitatory post-synaptic potentials occur; (2) that multiple firing from single synaptic potentials is usual; (3) that the post-synaptic responses to phasic natural stimuli and to electrical stimulation of g...Continue Reading

References

Aug 1, 1957·Journal of Cellular Physiology·S HAGIWARA, T H BULLOCK

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Citations

Apr 1, 1964·The Journal of Experimental Zoology·H T HERMANN
May 1, 1991·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·K S Thompson, J P Bacon
Dec 1, 1961·Kybernetik·L STARK, H T HERMANN
Dec 27, 1974·Brain Research·R L Calabrese, D Kennedy
Feb 1, 1963·Comparative Biochemistry and Physiology·P J MILL
Feb 1, 1963·Comparative Biochemistry and Physiology·D KENNEDY, J B PRESTON
Dec 1, 1964·Comparative Biochemistry and Physiology·D KENNEDY, D MELLON
Oct 1, 1966·Comparative Biochemistry and Physiology·J L LarimerE A Ashby
Jan 1, 1960·The Journal of General Physiology·J B PRESTON, D KENNEDY
Mar 1, 1962·The Journal of General Physiology·J B PRESTON, D KENNEDY
Jan 1, 1963·The Journal of General Physiology·D KENNEDY
Jan 1, 1965·The Journal of General Physiology·K TAKEDA, D KENNEDY
Mar 1, 1966·The Journal of General Physiology·M Biederman-Thorson
Apr 1, 1968·The Journal of General Physiology·H T Hermann, R E Olsen
Jan 28, 1972·Brain Research·D A Harris, L Stark
Oct 1, 1963·The Anatomical Record·H HERMANN, L STARK
Oct 1, 1964·Journal of Cellular Physiology·K TAKEDA, D KENNEDY
Apr 1, 1961·The Journal of Comparative Neurology·C A WIERSMA, G M HUGHES

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