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L E Tsitolovskiĭ

Publications and source records attributed to L E Tsitolovskiĭ.

At least 19 recordsLinked to original sources
PubMed1976

[Changes in the postsynaptic and spike potentials of a cortical neuron during habituation].

Changes in the spikes, EPSPs and IPSPs of neurons in the general cortex of the turtle forebrain were studied intracellularly during irregular repetition of light flasches. The amplitudes of these intracellular potentials decreased during habituation without any change in the resting potential. Their dependence on the membrane potential level changed. The short-latent evoked spikes decreased more considerably as compared with the spontaneous spikes and the spikes after IPSP. Probably, the decrease of the spontaneous spike and the spike after the IPSP reflects a nonspecific decrease in the excitability of a neuron because of the long intracellular recording so far as during extracellularly recording only the short-latent evoked spike decreased with habituation. The decrease of the short-latent evoked spike reflects neuronal habituation. A disinhibition of spikes and PSPs was observed. A suggestion is advanced that the pattern of synapses activated by a definite repetitive stimulus evokes a transitory change of the electrogenic properties of the neuronal membrane.

Action Potentials↗
PubMed1975

[Selective reduction of the amplitude of the action potentials of neurons in the process of habituation].

Spike discharges of single neurons in the forebrain general cortex of the turtle were recorded extracellularly during habituation to light flashesmthe amplitude of spontaneous spikes, short-latent evoked spikes and spikes after the inhibitory pause was measuredmthe amplitude of short-latent evoked spikes significantly decreased during habtiuation while the background and postinhibitory spikes remained unchanged. It is supposed that the pattern of synapses activated by a definite stimulus may change the state of the elcetrically excitable neuronal membrane during habituation

Action Potentials↗
PubMedDate not supplied

[The active electrogenesis of the command neurons in the defensive behavior of the mollusk during conditioning].

In the paper changes of active electrogenesis of the command neurones of defensive closure of snail pneumostome at elaboration, extinction and repeated elaboration of classic conditioned defensive reflex to tactile stimulus was described; the tactile stimulation of other point of the body served as a differentiating stimulus. During the increase of biological significance of conditioned stimulus as a result of learning the stimulation of the command neurones in response to this stimulus was raised. At the same time the neurones showed decreased excitability in response to differentiating stimulus. Possible mechanisms of quick reconstruction of neurones excitability and functional value of PA generation threshold changes were discussed.

Animals↗