抄録
According to the auther's statistical study, the incidence of air-sickness among 1370 domestic airline (DC-3) passengers in Japan was only 7%.to 8%.Among thoese suffering from air-sickness, in 71 percent past history of motion sickness and in 34 percent familial susceptibility were observed.
After performance of the swing test, blood pressure (the maximam and minimam), Volar-Electro-skin-resistance and puls interval were periodically examined. The results of these examinations did not differ between people who were susceptible to air-sickness and those who were not.Howevere, it was revealed, as the result of Wenger's test of the automatic nerves undr normal conditions, that people who were particularly susceptible to air-sickness indicated a tendency of parasympathicotonia.As to the influence of emotional factors on the susceptibility to air-sickness, no close relation to any one characteristic type of people was observed, but a relatively higher incidence of air-sickness was confirmed among persons with extreme characteristic traits, regardless of the type
To test the vestibular function in regards to the susceptibility to air-sickness, cupulometry was carried out, the results of which show that inclination of over 10 seconds duration in the cupulogram is of significance in judging whether an individualis prone to air-sickness or not.
