Cortical unit activity in cats during conditioned inhibition
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Conclusions
- 1.
In the initial stage of conditioned inhibition (CI) formation, the first applications evoked an orienting reaction of the animal, abolishing the response of the neurons to the positive conditioned stimulus in a conditioned inhibitory combination. At the stage of established CI, this abolition or inhibition of the response takes place during successive presentations of CI.
- 2.
Behavioral discrimination between reinforced and nonreinforced stimulations was accompanied in some neurons by loss of the ability to respond to positive stimulation in a conditioned inhibitory combination, while the response to the same stimulus, reinforced by food, was preserved. In other neurons, absence of response to CI is closely connected with absence of a behavioral reaction, i.e., with absence of the inflow of afferent impulses.
- 3.
Two groups of somatosensory cortical neurons are involved in the development of CI: neurons activated also to positive stimulation during the behavioral reaction, and neurons areactive toward positive conditioned stimulation, but reducing the spontaneous discharge frequency.
Keywords
Conditioned Stimulus Cortical Neuron Unit Activity Conditioned Inhibition Spontaneous DischargePreview
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Literature cited
- 1.A. S. Batuev, Higher Integrative Systems of the Brain [in Russian], Nauka, Leningrad (1981).Google Scholar
- 2.U. G. Gasanov, Internal Inhibition [in Russian], Nauka, Moscow (1972).Google Scholar
- 3.H. Jasper, G. Ricci, and B. Down, “Microelectrode analysis of discharges of cortical neurons during defensive conditioning in monkeys,” Electrophysiological Investigations of Higher Nervous Activity [in Russian], Izd. Akad. Nauk SSSR, Moscow (1962), p. 129.Google Scholar
- 4.B. I,. Kotlyar, Mechanisms of Formation of the Temporary Connection [in Russian], Moscow University Press, Moscow (1977).Google Scholar
- 5.Yu. G. Kratin, Signal Analysis by the Brain [in Russian], Nauka, Leningrad (1977).Google Scholar
- 6.Zh. A. Kruchenko, V. V. Sachenko, and N. N. Koval'chuk, “Responses of neurons of the first somatosensory cortex of the cat during external and internal inhibition of an Instrumental conditioned reflex,” Fiziol. Zh. (Ukr.),30, No. 6, 641 (1984).Google Scholar
- 7.M. Ya. Rabinovich, The Closing Function of the Brain [in Russian], Meditsina, Moscow (1975).Google Scholar
- 8.V. G. Skrebitskii, Regulation of Conduction of Excitation in the Visual Analyzer [in Russian], Meditsina, Moscow (1977).Google Scholar
- 9.V. M. Storozhuk, “Neurophysiological analysis of internal inhibition,” Fiziol. Zh. (Ukr.),30, No. 5, 527 (1984).Google Scholar
- 10.V. M. Storozhuk and S. F. Kovtun, “Participation of neurons of the central gray matter of the midbrain in organization of a definsive conditioned reflex in a cat,” Neirofiziologiya,15, No. 3, 278 (1983).Google Scholar
- 11.V. M. Storozhuk, Zh. A. Kruchenko, and E. F. Semenyuk, “Activity of cortical neurons during conditioned-reflex inhibition,” Fiziol. Zh. (Ukr.),26, No. 4, 481 (1980).Google Scholar
- 12.V. M. Storozhuk, E. F. Ryazantseva, and Zh. A. Kruchenko, “Particiation of neurons of the mesencephalic reticular formation of cats in conditioned-reflex activity,” Neirofiziologiya,18, No. 2, 161 (1986).Google Scholar
- 13.V. M. Storozhuk and E. F. Semenyuk, “Dynamics of neuronal responses during the formation of a conditioned defensive reflex to sound,” Neirofiziologiya,10, No. 4, 339 (1978).Google Scholar
- 14.G. I. Shul'gina, Bioelectrical Activity of the Brain and the Conditioned Reflex [in Russian], Nauka, Moscow (1978).Google Scholar
- 15.V. V. Shul'govskii, B. M. Sidorov, B. I. Kotlyar, and A. A. Moskvitin, “Neuronal activity in the cat motor cortex during performance and conditioned-reflex inhibition of the placing reflex of the forelimb,” Zh. Vyssh. Nervn. Deyat.,27, No. 4, 770 (1977).Google Scholar