Neurophysiology

, Volume 16, Issue 2, pp 166–172 | Cite as

Responses of limbic cortical neurons during instrumental conditioned reflexes in cats

  • L. É. Zinyuk
Article
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Abstract

Unit activity in cortical areas 24 and 32 was studied during conditioned placing reflex formation in cats. Neuronal responses in the limbic cortex of trained animals correlated with acoustic stimulation, the motor response, and also with the presentation of food reinforcement. In untrained animals 16% of neurons responded to acoustic stimulation. After training the number of neurons responding to sound in area 32 increased to 51.3%. Of the total number of neurons, 34.6% responded by initial excitation and 26.7% by inhibition of spike activity. The latent period of these responses was about 50 msec and their duration up to 200 msec. Similar but weaker responses were observed in area 24. Short-latency activation responses to conditioned and differential stimulation were similar in character. It is suggested that after training processes taking place in the limbic cortex may contribute to better perception of both conditioned and differential acoustic stimuli, irrespective of their functional significance.

Keywords

Cortical Neuron Cortical Area Motor Response Conditioned Reflex Unit Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Literature cited

  1. 1.
    A. S. Batuev, Higher Integrative Systems of the Brain [in Russian], Nauka, Leningrad (1981).Google Scholar
  2. 2.
    B. I. Kotlyar, Mechanisms of Temporary Connection Formation [in Russian], Moscow University Press, Moscow (1977).Google Scholar
  3. 3.
    A. A. Orlov, A. A. Pirogov, and V. I. Shefer, "Comparative characteristics of unit activity in the frontal and motor cortex of monkeys during movement," Fiziol. Zh. SSSR,65, No. 12, 1727 (1977).Google Scholar
  4. 4.
    V. M. Storozhuk and A. N. Tal'nov, "Responses of somatosensory cortical neurons in cats during instrumental placing reflex," Neirofiziologiya,14, No. 4, 392 (1982).Google Scholar
  5. 5.
    E. Evarts, "Correlation between motor cortical activity, smooth movement, and posture fixation," in: Formation and Inhibition of Conditioned Reflexes [Russian translation], Nauka, Moscow (1973), pp. 141–162.Google Scholar
  6. 6.
    V. Amassian, H. Weiner, and M. Rosenblum, "Neural systems subserving the tactile placing reaction: a model of higher level control of movement," Brain Res.,40, No. 1, 171 (1972).PubMedGoogle Scholar
  7. 7.
    E. V. Evarts and J. Tanji, "Reflex and intended responses in motor cortex pyramidal tract neurons of monkey," J. Neurophysiol.,39, No. 5, 1069 (1976).PubMedGoogle Scholar
  8. 8.
    H. J. Markowitsch and M. Pritzel, "Reward related neurons in cat association cortex," Brain Res.,111, No. 1, 185 (1976).PubMedGoogle Scholar
  9. 9.
    H. J. Markowitsch and M. Pritzel, "Single unit activity in cat prefrontal and posterior association cortex during performance of spatial reversal task," Brain Res.,149, No. 1, 53 (1978).PubMedGoogle Scholar
  10. 10.
    W. J. Nauta, "The problem of the frontal lobe: a reinterpretation," J. Psychiat. Res.,8, No. 1, 167 (1971).PubMedGoogle Scholar
  11. 11.
    F. Reinoso-Suarez, Topographischer Hirnatlas der Katze, Darmstadt (1961).Google Scholar
  12. 12.
    M. Sakai, "Single unit activity in a border area between the dorsal prefrontal and premotor regions in the visually conditional motor task of monkeys," Brain Res.,147, No. 2, 377 (1978).PubMedGoogle Scholar

Copyright information

© Plenum Publishing Corporation 1984

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  • L. É. Zinyuk

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