The purpose of this study is to examine the influence of the menstrual phases (premenstrual, mid-menstrual, and post-menstrual) on emotional responsiveness in female employees. Participants were 27 female and 10 male employees. The survey form includes 10 negative image words, 10 positive image words, and the Two Dimensional Mood Scale, and MDQ Japanese version). Emotional responsiveness to stimulus words was measured in 3 phases prospectively. The result indicated that there was the interaction of phases and sex. The emotional responsiveness scores in female participants were significantly lower in the mid-menstrual period compare to the scores in male participants or other phases. The result indicates that the understanding of the cyclic emotional changes in peri-menstrual periods may promote preventative self-care behaviors. Further study is needed to examine emotional changes in peri-menstrual periods.
