[Reaction to physical load in persons with a varying vestibular-autonomic resistance]. / Reaktsiia na fizicheskuiu nagruzku u liudei s razlichnoi vestibulo-vegetativnoi ustoichivost'iu.

The level of vestibular stability (tolerance to the double rotation test according to I. I. Bryanov) was compared with the pattern of changes in the heart rate and arterial pressure during exercise tests (20 squatting per 30 sec). The test subjects were 136 healthy male volunteers--representatives of different professions, aged 21--40. The subjects with high vestibular stability showed greater changes in heart rate (+29%) and a relatively stable diastolic pressure. The subjects with low vestibular stability displayed, on the contrary, greater changes in the diastolic (-9%) and pulse (+71%) pressure and a relatively low increase in heart rate. The time of recovery of the pressure level was significantly longer in the susceptible people. The possibility of predicting vestibular tolerance on the basis of responses to exercise tests was explored. Mathematical formulas of the theory of image recognition were used to develop a rule that makes it possible to identify 84.4% subjects with low vestibular stability in a given group.

[Oriented rat movement in a rotating system]. / Orientirovannoe peredvizhenie krys vo vrashchaiushchiesia sisteme

In experiments with rotating of rats, their avoidance responce was studied: rats moved into the central portion. The 7 degrees or 15 degrees pitch of the central portion's walls caused significant moving of rats towards a square peripheral portion. When experimenting in darkness, the moving--towards--center response was restored, while under illumination the preference of the peripheral portion was again revealed in the rats obtained are are regarded as confirming the hypothesis of taht the moving--to center response during rotation is due to discrepancy between the vestibular and the visual systems of coordinates in peripheral portions of centrifuge.