PMID: 13563802Jul 20, 1958Paper

Synaptic potential in the motor giant axon of the crayfish

The Journal of General Physiology
S HAGIWARA

Abstract

Some electrical properties of the synapses between central giant axons (presynaptic) and the motor giant axon (postsynaptic) of the crayfish abdominal nerve cord have been investigated. Postsynaptic potential change in response to presynaptic volleys contains two components: a spike potential and a synaptic potential of very long time course. Amplitude of the synaptic potential is graded according to the number of active presynaptic axons. Conductance increase in the synaptic membrane endures over most of the period of potential change, and it is this rather than the "electrical time constant" of the membrane that in large measure determines the form of the synaptic potential. Temporal summation of synaptic potential occurs during repetitive presynaptic stimulation, and after such stimulation the rate of decay of synaptic potential is greatly slowed.

Citations

Jan 1, 1972·Zeitschrift für Zellforschung und mikroskopische Anatomie·C A Stirling
Jan 1, 1961·Ergebnisse der Physiologie, biologischen Chemie und experimentellen Pharmakologie·J C ECCLES
Jan 1, 1992·Electron Microscopy Reviews·B Leitch
Nov 1, 1961·The Journal of General Physiology·A WATANABE, H GRUNDFEST
Oct 1, 1964·Journal of Cellular Physiology·K TAKEDA, D KENNEDY

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