Trend of statistical characteristics of evoked potentials in modality-specific brain structures during defensive conditioning

Autor: Popova, N. S., Uvarov, V. G.
Zdroj: Neuroscience and Behavioral Physiology; May 1981, Vol. 11 Issue: 3 p255-261, 7p
Abstrakt: Conclusions 1.The study of interdependence between integrative processes in relays of the analyzer of the conditioned stimulus shows that significant coefficients of correlation between EP parameters in these brain structures are determined by the stage of formation of behavior.2.In stage 1 of defensive conditioning, before independent effector responses are present, significant coefficients of correlation are not found between EP parameters recorded in the structures of the analyzer.3.In stage 2 of defensive conditioning significant coefficients of correlation for the first positive component of EP (latent period, amplitude, and duration) are found for different areas of the auditory and visual cortical projection zone, but for parameters of the negative component of EP (amplitude and duration), they are found for all relays of the analyzer in the brain.4.During the stage of stabilization of the defensive reflex significant coefficients of correlation are found only between EP parameters in different areas within the auditory or visual projection cortex.5.The results are examined from the point of view of adaptation of analyzer activity to the demand of formation of adaptive behavior at each stage of conditioning and the role of motivational excitation in the organization of intra-analyzer integration.
Databáze: Supplemental Index
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