Features of the Psychophysiological Status of Men with Different Levels of Vestibular-Autonomic Resistance and Their Interrelation with Etiology and Pathogenesis of Motion Sickness

摘要

The results of more than 600 surveys of 200 healthy male volunteers aged 23-45 years, including parameters of electroencephalograms, sensorimotor reactions, and questionnaires of Cattell, Strelau and Taylor, have been analyzed. Division into groups with a high, moderate, and low vestibular-autonomic resistance (VAR) has been made on the basis of tolerance to the rotary test with interrupted cumulation of Coriolis accelerations. It has been shown that the VAR level, along with differences in sensitivity between the peripheral part of the vestibular analyzer and other sensory systems, is highly determined by the differences in strength, lability, activation, and dynamism of the nervous system, as well as the balance and mobility of the processes of excitation/inhibition. The VAR level is also determined by differences in the psychophysiological status, characterizing a state of psychomotor reactions, features of personality and temperament, and cognitive abilities, while the intensity of vestibular-autonomic disorders in men susceptible to motion sickness is enhanced by the influence of their psychoemotional condition during vestibular stimulation-the subjective sensation of being "lost in space", manifestation of mental discomfort and anxiety, accompanied by autonomic and neurohormonal reactions, whose extreme form can be characterized as "the threatened state syndrome."