Vestibular-related neuroscience and manned space flightThe effects of weightlessness on the human vestibular system are examined, reviewing the results of recent investigations. The functional, neurophysiological, and neurochemical changes which occur during adaptation to weightlessness are discussed; theoretical models proposed to explain the underlying mechanism are outlined; and particular attention is given to the author's experiments on squirrel monkeys. There, good correlations were found between (1) the recovery of locomotor balance function in the acute compensation phase after unilateral labyrinthectomy and (2) the bilateral imbalance in the optical density of GABA-like immunoreactivity.
Document ID
19890030468
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Igarashi, Makoto (Universities Space Research Association Houston, TX, United States)