SEASICKNESS SUSCEPTIBILITY, PERSONALITY-FACTORS, AND SALIVATION

The present study investigates the possible relationship between motio n sickness susceptibility, personality factors and salivation. Persona lity factors, as evaluated by the Eysenck Personality Questionnaire, a nd salivary composition end flow were measured in a group of 29 subjec ts highly susceptible to seasickness and in a group of 25 non-suscepti ble subjects. The nonsusceptible group had significantly higher psycho ticism scores and significantly lower salivary amylase levels compared to the highly susceptible group. A significant positive correlation w as found between psychoticism scores and the amount of the increase in salivary flow in response to gustatory stimulation. These results pro vide more delta in support of a connection between motion sickness sus ceptibility, personality, and the autonomic nervous system.