NASA Technical Reports Server (NTRS) 20070006524: Adaptive Changes ... | |
by NASA Technical Reports Server (NTRS) | |
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Virtual environments offer unique training opportunities, | |
particularly for training astronauts and preadapting them | |
to the novel sensory conditions of microgravity. Two | |
unresolved human factors issues in virtual reality (VR) | |
systems are: 1) potential "cybersickness", and 2) | |
maladaptive sensorimotor performance following exposure | |
to VR systems. Interestingly, these aftereffects are | |
often quite similar to adaptive sensorimotor responses | |
observed in astronauts during and/or following space | |
flight. Initial interpretation of novel sensory | |
information may be inappropriate and result in perceptual | |
errors. Active exploratory behavior in a new environment, | |
with resulting feedback and the formation of new | |
associations between sensory inputs and response outputs, | |
promotes appropriate perception and motor control in the | |
new environment. Thus, people adapt to consistent, | |
sustained alterations of sensory input such as those | |
produced by microgravity, unilateral labyrinthectomy and | |
experimentally produced stimulus rearrangements. The | |
purpose of this research was to compare disturbances in | |
sensorimotor coordination produced by dome and head- | |
mounted virtual environment displays and to examine the | |
effects of exposure duration, and repeated exposures to | |
VR systems. The first study examined disturbances in | |
balance control, and the second study examined | |
disturbances in eye-head-hand (EHH) and eye-head | |
coordination. | |
Date Published: 2016-10-29 21:24:52 | |
Identifier: NASA_NTRS_Archive_20070006524 | |
Item Size: 1144739 | |
Language: english | |
Media Type: texts | |
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