Vestibular patients exhibit drawing and writing size distortions similar to astronauts during spaceflight
Clement, G.; Deguine, O.
Show abstract
This study aimed to examine how vestibular dysfunction influences spatial perception and motor output, using drawing tasks as a tool to explore changes in body schema. Patients with otolith dysfunction were compared to astronauts tested before, during, and after six months of exposure to microgravity aboard the International Space Station. Participants were instructed to draw and write words both horizontally and vertically. When performing these tasks with eyes closed, vestibular patients frequently produced drawings and handwriting that were more vertically compressed compared to when their eyes were open. Similarly, astronauts exhibited greater vertical compression in drawings and handwriting during spaceflight compared to their preflight performance. These findings highlight the critical role of vestibular input in integrating multisensory information to preserve consistent spatial representations.
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