[Changes in psychophysiological variables in students during examinations].

Current psychological tests and classic methods for recording and calculating autonomic correlates were used to study changes in students' psychophysiological indices during examinations. During this period, the students were found to develop emotional stress characterized by a complex of psychophysiological and autonomic changes. The nature and direction of the latter were determined by the individual and typological properties the examinees, by the significance of the emotional and stress situation of the autonomic nervous system and its responsiveness.

[The neuronal organization of the limbic (cingulo-)-visceral reflex arc].

The paper summarizes new electrophysiological data concerning the structural-functional organization of the limbic cortex and role of the rostral limbic region of visceral functions. Here are presented the results of a series of electrophysiological investigation of the focus of localization in the supracallosal (area 24) and infracallosal (area 25) part of the anterior cingulate gyrus of evoked potentials of maximal amplitude and minimal latent period to stimulation of pelvic, splanchnic and sciatic nerves. It was shown that evoked potentials of maximal amplitude and minimal latent periods to stimulation of viscero-somatic nerves are recorded in the supragenual area 24 in comparison with the infragenual area 25 of the anterior limbic cortex.

[The role of the thalamic ventrolateral nucleus in the cortical effect on the activity of vestibular neurons].

Electrocoagulation of lateral vestibular nucleus (NVL) reduces inhibitory effect of the motor and somatosensory areas and enhances the inhibitory effect of limbic, vestibular, and orbital cortical areas. Facilitating effect was enhanced by electrostimulation of the motor area and reduced by the stimulation of other cortical areas. Following the coagulation of the NVL, the ascending afferent flow to the cortex seems to be reduced.

[A comparative analysis of the descending projections of areas 5 and 7 of the parietal cortex to the cat brain stem].

Relative quantity of descending fibres of parietal fields 5 and 7 of cat brain stem was studied. Maximal projections of these field were determined, maximal projections of fields 5 and 7 to red nucleus reticular nucleus of midbrain and nucleus proprius of pons were shown. Topographic and quantitative overlapping of projections of fields 5 and 7 in red nucleus and reticular nucleus of midbrain was noted.