Conclusions
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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.
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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.
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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.
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Translated from Zhurnal Vysshei Nervnoi Deyatel'nosti imeni I. P. Pavlova, Vol. 37, No. 5, pp. 906–913, September–October, 1987.
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Kruchenko, Z.A., Sachenko, V.V. Cortical unit activity in cats during conditioned inhibition. Neurosci Behav Physiol 18, 419–425 (1988). https://doi.org/10.1007/BF01193889
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DOI: https://doi.org/10.1007/BF01193889