4pBVb1. Measurement of physiological and psychological responses during exposure to low-frequency whole-body oscillations.

Session: Thursday Afternoon, December 5

Time: 4:05


Author: Naonosuke Takarada
Location: Osaka Prefecture Univ., Dept. of Marine System Eng., Osaka, Japan
Author: Masashi Takesada
Location: Osaka Prefecture Univ., Dept. of Marine System Eng., Osaka, Japan
Author: Ryusuke Hosoda
Location: Osaka Prefecture Univ., Dept. of Marine System Eng., Osaka, Japan
Author: Masakazu Arima
Location: Osaka Prefecture Univ., Dept. of Marine System Eng., Osaka, Japan

Abstract:

Human responses to low-frequency whole-body oscillations were measured using a ship-motion simulator. An electroencephalogram (EEG), an electrocardiogram (ECG), perspiration, face-surface temperature, facial expressions, and the respiration of subjects were measured as physiological effects, and ride quality and motion sickness symptoms as the psychological effects. Before and after exposure to the oscillations, subjects were asked to reply to questionnaire surveys prepared to measure the psychological changes, to take blood samples, and to have blood pressure and sense of balance inspections. Measured results of physiological changes such as EEG, ECG, etc. have been analyzed by means of spectral analysis, wavelet analysis function analysis, and so on. The results of the questionnaire survey of the semantic differential method (SD method) were analyzed by introducing fuzzy integral and fuzzy measures as well as the traditional statistical method. Correlation analyses using all the measured results were carried out. From the results of analyses, it has been made clear that (1) subjects are classified into several types, and (2) psychological effects are important to evaluate the motion sickness incidence and ride quality, for example.


ASA 132nd meeting - Hawaii, December 1996