[Effect of hypokinesia on the ultrastructure of emotion-controlling structures in the rat brain].

Hypokinesia lasting 40 and 90 days causes a number of ultramicroscopic reorganizations in neurons, synapses and glial elements of the singular cortex and the central amygdaloid nucleus. The longer the time of hypokinesia, the more numerous and variable the reorganizations become. For the amygdaloid body presence of neurons with various degree of chromatolysis, reactive and destructive changes of organells, agglutination and reduction in number of the synaptic vesicles, increasing number of synapses, possessing certain features of low functional activity are most specific.

[Ultrastructural organization of the septum pellucidum in dogs subjected to long-term partial intraspecific isolation].

The dogs have been kept under conditions of a partial intraspecific isolation for a long time, beginning from early stages of the postnatal ontogenesis. The reactive changes in neurons, interneuronal contacts are shown to produce proliferation of neuroglial cells and a number of their ultrastructural reorganizations. Phagocytic cells--astrocytes and microgliocytes--activate.

Favourable effect of physical exercise on informational pathology of higher nervous activity.

As a model of neurotic states induced by information overload experimental neurotic states were evoked in 13 dogs reared under conditions of partial social isolation by shortening the intertrial intervals in an alimentary conditioned reflex situation with delayed reinforcement. Both behavioural and autonomous disturbances were completely abolished in 4 of 5 dogs which were systematically exposed to muscular activity. Similar protective and therapeutic effect had the muscular exercise which formed a main component of the therapy in 59 neurotic subjects.