Abstract
The results of studies on oculomotor reactions, both spontaneous and induced by visual and vestibular stimuli, that were performed during missions of Russian orbital complexes are described. It is demonstrated that abnormal sensorimotor reactions (spontaneous nystagmus; disturbance of the tracking function of the eyes; and decrease and increase in the tonic and dynamic vestibular excitability, respectively) are appropriate reactions of sensory systems during weightlessness. Abnormal sensorimotor reactions during spaceflights are individualized with respect to the strength, pattern of expression, time of development, and duration and dynamics of adaptation processes. Periods of adaptation (the initial, disintegration, and adaptation periods and alternation of compensation and decompensation periods) of sensorimotor functions to the conditions of weightlessness are determined. The possible mechanisms of neurosensory disturbances are described. These are otolith deafferentation, channel–otolith conflict, interlabyrinth asymmetry, intersensory mismatch, sensory deprivation, and suppression of vestibular afferent signals inadequate to new conditions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
