[Comparative evaluation of the circulatory reaction during work in weightlessness and in the mockup of the Saliut station].

Comparative evaluations of circulation responses of 22 operators and 13 cosmonauts to simulated and real flights onboard Salyut station revealed significant differences. By the end of flight cardiovascular responses of the operators showed signs of their increased conditioning, whereas the cosmonauts exhibited symptoms of circulation tension, which were particularly expressed during the first week and by the end of flight. Operators' activities in an orbital station mockup cannot be considered an adequate model for cardiovascular studies.

[Human cognitive activity during adaptation to short-term weightlessness].

The differences in subjective sensations during the first exposure to short-term weightlessness are analyzed on the basis of the pattern of cognitive activity of test subjects and the scope of information they have received previously. The subjects with objective and productive types of cognitive behavior showed the most adequate and rapid adaptation to weightlessness. The subjects with a subjective and unproductive type of cognitive tactics exhibited great problems in adapting themselves to weightlessness, showing unusual psychic states like the "world peril" syndrome and psychic estrangement.