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Integrative processes in an identified snail neuron with two trigger zones

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Conclusions

  1. 1.

    Spike activity of neuron RPa4 is based on activity of both pacemaker and synaptic mechanisms.

  2. 2.

    On the axon branches departing for RPN, neuron RPa4 has its own trigger zone, by means of which spikes can be sent to the periphery without general activity of the whole neuron. In the case of generation of a complete AP, the presence of such a zone enables the number of spikes travelling along this axon branch to be multiplied.

  3. 3.

    The presence of several axon branches is the essential structural-functional basis whereby a giant neuron of the RPa4 type can regulate the distribution of spikes to different parts of the snail's body. Such organization of giant neurons, with additional zones of AP generation, is optimal for integrative activity and for the provision of intraneuronal mechanisms of local plasticity.

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Literature cited

  1. G. G. Arakelov and E. N. Sokolov, in: Pacemaker Potential of the Neuron [in Russian], Izd. Akad. Nauk Gruz, SSR, Tbilisi (1975), p. 14.

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  2. P. G. Kostyuk, in: Physiology of Man and Animals [in Russian], All-Union Institute of Scientific and Technical Information, Moscow (1972), Vol. 10.

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  3. D. A. Sakharov, The Genealogy of Neurons [in Russian], Nauka, Moscow (1974).

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  4. B. O. Alving, J. Gen. Physiol.,51, 29 (1968).

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Authors and Affiliations

  1. Department of Psychophysiology, M. V. Lomonsov Moscow State University, USSR

    G. G. Arakelov

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  1. G. G. Arakelov
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Translated from Zhurnal Vysshei Nervnoi Deyatel'nosti imeni I. P. Pavlova, Vol. 30, No. 5, pp. 1030–1036, September–October, 1980.

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Arakelov, G.G. Integrative processes in an identified snail neuron with two trigger zones. Neurosci Behav Physiol 13, 222–227 (1983). https://doi.org/10.1007/BF01148854

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  • DOI: https://doi.org/10.1007/BF01148854

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