Publications by authors named "O Kuldavletova"
Among the factors, such as emotions, that distort time perception, vestibular stimulation causes a contraction in subjective time. Unlike emotions, the intensity of vestibular stimulation can be easily and precisely modified, making it possible to study the quantitative relationship between stimulation and its effect on time perception. We hypothesized that the contraction of subjective time would increase with the vestibular stimulation magnitude.
View Article and Find Full Text PDFSleep and circadian timing systems are constantly regulated by both photic and non-photic signals. Connections between the vestibular nuclei and the biological clock raise the question of the effect of peripheral vestibular loss on daily rhythms, such as the sleep-wake cycle and circadian rhythm. To answer this question, we compared the sleep and rest-activity rhythm parameters of 15 patients with bilateral vestibulopathy (BVP) to those of 15 healthy controls.
View Article and Find Full Text PDFArticle Synopsis
- Nine astronauts underwent tests in the early 1970s to assess their eye movement responses during body tilts, aimed at evaluating their vestibular functions before missions to Skylab.
- The study re-analyzed data on ocular counter-rolling (OCR) responses, comparing them with factors like susceptibility to motion sickness and symptoms experienced in parabolic flights.
- Despite finding weak correlations between individual test measures and space motion sickness severity, a combined analysis of multiple parameters showed a stronger correlation, highlighting the unpredictability of SMS susceptibility using single tests.
Introduction: This study compares the balance control and cognitive responses of subjects with bilateral vestibulopathy (BVP) to those of astronauts immediately after they return from long-duration spaceflight on board the International Space Station.
Methods: Twenty-eight astronauts and thirty subjects with BVP performed five tests using the same procedures: sit-to-stand, walk-and-turn, tandem walk, duration judgment, and reaction time.
Results: Compared to the astronauts' preflight responses, the BVP subjects' responses were impaired in all five tests.
Article Synopsis
- A study investigated how astronauts perceive time before, during, and after their missions on the International Space Station, comparing them to a control group of non-astronauts.
- The research found that astronauts had slower reaction times and struggled with time estimation tasks while in space, especially when multitasking.
- The study suggests that altered time perception in microgravity might be due to changes in the body's internal clock and challenges with attention and memory in stressful conditions.