Changes in women's emotions as a function of emotion valence, self-determined category of premenstrual distress, and day in the menstrual cycle.

A confirmatory study where 20 women completed Plutchik and Kellerman's Emotions Profile Index in a daily prospective rating of emotions supported previous findings of mood fluctuations across the menstrual cycle. Positive moods peaked at or about the time of ovulation and negative ones at or about the time of menstruation. However, significant interactions indicated that a pronounced shift in mood was only characteristic of women who rated themselves as "sufferers" of premenstrual discomfort and not of those who rated themselves as experiencing very mild discomfort.