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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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