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Biomedical subjects

S A Razumov

Publications and source records attributed to S A Razumov.

5 recordsLinked to original sources

[Dissociation and consolidation of a motor habit in different emotional states].

Complex motor habit (swimming in breast stroke style) revealed dissociation of the inner (electromyography) and ambient (chronogram of swimming) structure in conditions of emotional tension and fatigue. Some emotional states, however, induced consolidation of the habit due to the range of sportsmen and their psychological readiness for competition. The variety of emotional states seems to induce a variety of effects on the inner and ambient structures of the formed motor habit.

Competitive Behavior↗

[Posterior lobe of the rooster pituitary during prolonged conditioning of emotional stress].

Daily fights were chosen to kindle the situation of emotional stress in roosters. A marked decrease in contents of the neurosecretory substance and a large number of Herring's bodies in the hypophyseal lumen were observed within the 1st month. By the 60th day these signs of increased release of the neurohormones into the blood flow disappeared and the condition of hypophysis returned to the initial level. Simultaneously the intensity of the fights was reduced. The reason the normalization of hypophysis state consists, probably, in the adaptation of the roosters to the stressful situations.

Animals↗

[Cock fighting as a model of emotional stress].

Aggressive and passive roosters displayed agonistic behaviour towards each other. The formers revealed a highly agonistic attitude in the first half of the experiment followed by an obvious decline. The passive roosters revealed a relatively stable agonstic attitude. The electrocardiorhythmograms showed that handling of the roosters and other manipulations masked the heart primary response to cock-fighting, and that the analysis of the heart rate during restitution only helped to estimate their emotional tension during fighting. Positive correlations between the aggressiveness and noradrenaline content in the plasma, were obtained. The latter correlated with the sexual activity as well. The agonistic behaviour entailed an insignificant activation of the adrenals.

11-Hydroxycorticosteroids↗