統制緩和下での負荷タスク遂行結果と心的内面状態との相関分析に関する一考察

抄録

In this study, we evaluate the effects of multiple mental states on the results of cognitive function tasks under a non-strictly controlled situation, as in the case of self-measurement. We conduct experiments using the N-back task and computational task as the load task and confirm that the correlation between the results of the N-back task and the subjective values of arousal, drowsiness, concentration, and stress are significant. In addition, the correlation between the results of the computational task and the objective value of drowsiness is between 0.4 and 0.6. We confirm that the results vary depending on the change in the mental state, such as the decrease in concentration or the increase in drowsiness. These results suggest that it is difficult to determine whether the low score on the task test is due to a lack of concentration or a decline in the cognitive function itself. This study indicates that when the task results are to be used for cognitive health checks etc., if the task is performed under an environment that is difficult to control, the mental states of the subject need to be considered for the correct interpretation of task results.