• R M Stern, S Hu, R LeBlanc, and K L Koch.
• Department of Psychology, Pennsylvania State University, University Park 16802.
• Aviat Space Envir Md. 1993 Sep 1; 64 (9 Pt 1): 827830827-30.

AbstractLittle is known about the factors that control individual differences in susceptible to motion sickness. A serendipitous observation in our laboratory that most Chinese subjects become motion sick prompted this study. We used a rotating optokinetic drum to provoke motion sickness and compared gastric responses and symptom reports of Chinese, European-American, and African-American subjects. There was no difference in the responses of European-American and African-American subjects; however, Chinese subjects showed significantly greater disturbances in gastric activity and reported significantly more severe symptoms. We suggest that this hyper-susceptibility presents a natural model for the study of physiological mechanisms of nausea and other symptoms of motion sickness.

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