RELATIONS BETWEEN MOTION SICKNESS SUSCEPTIBILITY, THE SPIRAL AFTER‐EFFECT AND LOUDNESS ESTIMATION

Abstract

This paper reports two experiments designed to elucidate those sensory characteristics which influence motion sickness susceptibility. In the first, a positive and significant correlation was obtained between the score derived from a biographical motion sickness questionnaire (MSQ) and the rate at which spiral after‐effect persistence increased as a logarithmic function of the induction period (SAE slope score). A positive but insignificant relation was also found between the MSQ score and the slope of the sensation cupulogram. The second experiment revealed a significant concordance between the MSQ score, the SAE slope score and the slope of the psychophysical function describing individual loudness estimates of a 1000 c/s tone. The notion of ‘receptivity’ was advanced to account for these findings.