Characteristics of compensatory processes after unilateral transection of the brachia of the inferior colliculus in cats
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Conclusions
- 1.
Unilateral injury to the brachium of the inferior colliculus resulted in a disturbance of the adequate perception of space, which was indicated by the unidirectionality of orientational and conditioned-reflex responses (in the same direction as the side of injury) to stimuli of various sensory modalities.
- 2.
Appreciable deafferentation of the parietal neocortex on the transection side resulted in a behavioral deficit.
- 3.
Compensation for the function of spatial analysis of nonauditory signals probably occurred due to the restoration of functional (tonusogenic) symmetry between the cortical and subcortical representations of nonauditory-signal analyzers.
- 4.
The restoration of the spatial analysis of auditory stimuli occurred during the first stages of compensation due to the activation of unihemispheric mechanisms in the intact parietal cortex. Later, the parietal cortex on the transection side was involved in this process.
Keywords
Spatial Analysis Auditory Stimulus Parietal Cortex Sensory Modality Inferior Colliculus
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Literature cited
- 1.N. Yu. Belenkov, O. A. Goreva, V. A. Sosenkov, and V. I. Shcherbakov, “Significance of associative (parietal) regions of cerebral cortex in compensation of disturbed brain functions,” Zh. Vyssh. Nervn. Deyat.,23, No. 6, 1149 (1973).Google Scholar
- 2.N. Yu. Belenkov and V. I. Shcherbakov, “Role of temporal regions of neocortex in integration of brain activity,” Zh. Vyssh. Nervn. Deyat.,20, No. 2, 317 (1970).Google Scholar
- 3.N. Yu. Belenkov and L. A. Fedotova, “Influence of cold shutdown of neocortical temporal regions on the electrical activity of the brain of the cat,” Fiziol. Zh. SSSR,58, No. 2, 158 (1972).PubMedGoogle Scholar
- 4.N. Ya. Vasin, Surgical Treatment of Tumors in the Temporal Lobe of the Brain [in Russian], Meditsina, Moscow (1976).Google Scholar
- 5.I. M. Gilman and A. N. Sovetov, “Interhemispheric asymmetry of late components of evoked potentials as an expression of compensatory processes,” Fiz. Chel.,6, No. 6, 1058 (1980).Google Scholar
- 6.O. A. Goreva, “Conditioned-reflex activity of cats after transection of brachia of inferior colliculus,” Zh. Vyssh. Nervn. Deyat.,21, No. 5, 937 (1971).Google Scholar
- 7.O. A. Goreva and Zh. A. Belousova, “Electrophysiological and behavioral changes in cats after transection of brachia of inferior colliculus,” Zh. Vyssh. Nervn. Deyat.,25, No. 6, 1226 (1975).Google Scholar
- 8.O. A. Goreva and V. I. Shcherbakov, “Behavior of cats after unilateral transection of brachium of inferior colliculus,” Zh. Vyssh. Nervn. Deyat.,28, No. 4, 727 (1978).Google Scholar
- 9.V. Yu. Dobrolyubov, “Polysensory properties of neurons of the primary auditory cortex in cats during spatial ontogeny,” Transactions of the Symposium ‘Structural and Functional Mechanisms of Cortical Integration’ [in Russian], Gorky (1978), p. 98.Google Scholar
- 10.V. N. Kazakov and V. A. Izmest'ev, “Neuronal and focal responses of parietal associative cortex to various peripheral stimuli,” Neirofiziologiya,4, No. 2, 4, 358 (1972).Google Scholar
- 11.T. E. Kalinina, “Interactions of various segments of the auditory analyzer during compensation for its functions after injuries,” in: Problems in Experimental Morphology and Genetics [in Russian], Kemerovo (1976), p. 59.Google Scholar
- 12.N. N. Lazuko and M. M. Khananashvili, “Role of temporal cortex in the organization of integrative systems of conditioned reflexes in dogs,” Zh. Vyssh. Nervn. Deyat.,24, No. 5, 924 (1974).Google Scholar
- 13.V. A. Plekhanov, O. A. Goreva, and V. I. Shcherbakov, “Role of temporal regions in conditioned-reflex activity after transection of brachia of inferior colliculus,” Zh. Vyssh. Nervn. Deyat.,25, No. 5, 692 (1975).Google Scholar
- 14.A. N. Sovetov and I. M. Gilman, “Relative electrical activity in symmetrical regions of the cerebral cortex after unilateral cortical injuries,” Zh. Vyssh. Nervn. Deyat.,25, No. 2, 388 (1975).Google Scholar
- 15.M. T. Shvachkina and V. I. Shcherbakov, “EEG activity of symmetrical points of cortex of the cerebral hemispheres after unilateral cooling of temporal neocortex in cats,” Zh. Vyssh. Nervn. Deyat.,28, No. 5, 1054 (1978).Google Scholar
- 16.V. I. Shcherbakov and Yu. I. Kosyuga, “Physiological mechanisms of spatial hearing,” Zh. Vyssh. Nervn. Deyat.,30, No. 2, 288 (1980).Google Scholar
- 17.V. I. Shcherbakov, M. T. Shvachkina, and O. K. Yashnova, “Spatial perception of stimuli during unilateral cold shutdown of temporal segment of neocortex,” Zh. Vyssh. Nervn. Deyat.,25, No. 1, 144 (1975).Google Scholar
- 18.H. Bienhold and H. Flohr, “Role of cholinergic synapses in vestibular compensation,” Brain Res.,195, No. 2, 476 (1980).PubMedGoogle Scholar
- 19.M. Cooper and P. Joung, “Cortical projections to the inferior colliculus of the cat,” Exp. Neurol.,51, No. 2, 488 (1976).PubMedGoogle Scholar
- 20.R. Moor and J. Goldber, “Protection of the inferior colliculus in the monkey,” Exp. Neurol.,14, No. 4, 429 (1966).PubMedGoogle Scholar
- 21.A. Rockel and E. Jones, “The neuronal organization of the inferior colliculus of the adult cat. I. The central nucleus,” J. Comp. Neurol.,147, No. 1, 11 (1973).PubMedGoogle Scholar
- 22.A. Rockel and E. Jones, “The neuronal organization of the inferior colliculus of the adult cat. II. The pericentral nucleus,” J. Comp. Neurol.,149, No. 3, 301 (1973).PubMedGoogle Scholar
- 23.A. Schneider and J. Davis, “Integration of the evoked responses to visual, somatic and auditory stimuli in polysensory areas of the cat cortex,” Physiol. Behav.,13, No. 3, 365 (1974).PubMedGoogle Scholar
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