MOTION SICKNESS INCIDENCE: EXPLORATORY STUDIES OF HABITUATION, PITCH AND ROLL, AND THE REFINEMENT OF A MATHEMATICAL MODEL

A series of experiments on human subjects assessed the effects of pitch and roll and habituation on motion sickness incidence (MSI). Pitch and roll angular accelerations, even larger than expected at sea, failed to systematically increase MSI. Habituation was evidenced in susceptible subjects who received consecutive daily 1- hour or 2-hour exposures to vertical motion. Habituation was greater for the longer exposure and the more severe motions. A mathematical model describing MSI as a function of the frequency and acceleration of vertical oscillation was refined by including exposure time as an independent variable. Investigation of frequencies of oscillation above 0.5 Hz confirmed the prediction of the model that MSI continues to decrease as a function of frequency for all frequencies greater than approximately 0.16 Hz.

• Supplemental Notes:
  • Report
• Corporate Authors:

  Human Factors Research, Incorporated

  6780 Cortona Drive
  Goleta, CA  United States  93017

  Office of Naval Research

  Department of the Navy, 800 North Quincy Street
  Arlington, VA  United States  22217
• Authors:
  • McCauley, M E
  • Royal, J W
  • Wylie, C D
• Publication Date: 1976-4

Media Info

• Features: References;
• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Behavior; Experiments; Human factors; Mathematical models; Motion; Motion sickness
• Subject Areas: Marine Transportation; Safety and Human Factors;

Filing Info

• Accession Number: 00659358
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Report/Paper Numbers: TR-1733-2
• Contract Numbers: N00014-73-C-0040
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM