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Title: [Relation between fast and slow elemental synaptic potentials in command neurons in Helix lucorum taurica L]. Author: Logunov DB. Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1983; 33(2):355-62. PubMed ID: 6305054. Abstract: In experiments on a semi-intact snail preparation and a preparation of the snail isolated CNS, after spikes (Sp) evoked in presynaptic neurones by depolarizing current, not only rapid (R) EPSPs emerged in the command neurones of the defensive reaction of closing the pneumostome, but they were also followed by slow (S) EPSPs lasting over 2 min. For each single synaptic contact, the R and S EPSP amplitudes were in a good linear correspondence. In different synapses no direct connection was observed between R EPSP and S EPSP. It is suggested that R and S EPSPs may set in as a result of the action of different substances on the command neurones. Functional significance of S EPSPs with different amplitudes in different command neurones may consist in a prolonged specific preparation of the neurones for the action of stimuli.[Abstract] [Full Text] [Related] [New Search]