Accession Number : AD0673216

Title :   PREVENTION OF OVERT MOTION SICKNESS BY INCREMENTAL EXPOSURE TO OTHERWISE HIGHLY STRESSFUL CORIOLIS ACCELERATIONS,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Graybiel,Ashton ; Deane,F. Robert ; Colehour,James K.

Report Date : 20 JUN 1968

Pagination or Media Count : 18

Abstract : Four Navy enlisted men were exposed in a slow rotation room (SRR) by stepwise increases over a period of 16 days to a terminal velocity of 10 rpm. The fact that overt symptoms of motion sickness at 10 rpm were prevented solely by the incremental increases demonstrated that adaptive processes somehow inhibited irradiation of vestibular activity to cell assemblies in areas concerned in the genesis of symptoms. The SRR sickness observed in other subjects suddenly exposed to 10 rpm thus may result from failure of homeostatic processes, permitting such irradiation. The underlying processes therefore are clearly nonhomeostatic in nature and produce a nonhomeostatic state. The findings have practical as well as theoretical implications. (Author)

Descriptors :   (*ADAPTATION(PHYSIOLOGY), ACCELERATION), (*MOTION SICKNESS, INHIBITION), STRESS(PHYSIOLOGY), VESTIBULAR APPARATUS, SPACE FLIGHT, ACCELERATION TOLERANCE, ROTATION

Subject Categories : Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE