Estimation of Differences in Work Attitudes by National Character from Physiological Signals

The number of foreign workers in Japan is increasing year by year. However, there is a problem that the retention rate of foreign workers who find jobs in Japan is low. One of the reasons for the high turnover rate of foreign workers is the difference between the work attitudes of foreign workers and the human resources sought by Japanese companies. It is thought that Japanese companies do not fully understand the differences between the work attitudes of Japanese and foreign workers and are not able to develop foreign workers’ human resources appropriately. This study proposes a method for estimating differences in the work attitudes of subjects based on differences in physiological characteristics during video watching. The subjects are asked to watch a video, and psychological change points are detected from their physiological signals during the viewing. In this study, the differences between the work attitudes of the two groups are estimated for Japanese and Vietnamese subjects. Pupil diameter is measured to estimate cognitive change and EDA is measured to estimate emotional change. Change point detection is applied to these physiological characteristics to estimate the scene that caused the change. In addition, the subjects’ work attitudes as perceived from the videos are considered based on their responses to the questionnaire. In the experiment, differences in cognitive change indicate that Japanese and Vietnamese have different views on work. It also showed that Japanese and Vietnamese have different attitudes towards work difficulties. Differences in emotional change indicated that Japanese and Vietnamese differ in the factors that cause emotional change. The differences in work attitudes estimated by this method can be used for human resource development of foreign workers in enterprises.