Accession Number : AD0695996

Title :   CHANGES IN SUBJECTIVE ESTIMATES OF WELL-BEING DURING THE ONSET AND REMISSION OF MOTION SICKNESS SYMPTOMATOLOGY IN THE SLOW ROTATION ROOM.

Descriptive Note : Joint rept.,

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Reason,James T. ; Graybiel,Ashton

Report Date : JUL 1969

Pagination or Media Count : 22

Abstract : The onset of motion sickness is characterized by a decline in generalized feelings of well-being. In this study, an attempt was made to quantify these subjective changes during the experimental production of motion sickness in the Slow Rotation Room. A simple eleven-point rating scale was used to measure the well-being state. The nature and the time of onset of symptoms were recorded independently. Systematic relationships were obtained between the amount of stimulation required to produce the Malaise 111 endpoint and the rate of change of well-being. In general, relatively susceptible individuals showed on immediate decline in well-being at the onset of the stimulus which continued to fall sharply until the endpoint was reached. With increasing resistance to motion sickness, this point of rapid decline ('avalanche phenomenon') was proportionately delayed. The point on the rating scale at which this rapid decline began was relatively consistent across all subjects. Various positions along the well-being scale were consistently associated with specific constellations of symptoms. The recovery of well-being, following the cessation of the stimulus, appeared to be slower in individuals of low susceptibility than in those who were highly susceptible. (Author)

Descriptors :   (*MOTION SICKNESS, CORIOLIS EFFECT), MEASUREMENT, PSYCHOPHYSIOLOGY, ROTATION, STIMULATION(PHYSIOLOGY), THRESHOLDS(PHYSIOLOGY), PSYCHOPHYSICS, SPACE FLIGHT

Subject Categories : Medicine and Medical Research
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE