title: Morningness-eveningness and diurnal variations in self-reported mood.
abstract: Effects of differences in morningness-eveningness (M-E) on diurnal variations in self-reported mood were examined in 28 female subjects. M-E was determined by using Horne and Ostberg's questionnaire, and mood by Mackay and his colleagues' stress arousal checklist. Self-reported arousal showed the expected pattern of variation across the day and this was found to be a function of subjects' M-E score. However, self-reported stress showed no significant differences due either to time of day or to subjects' M-E score. This confirms the independence of the two mood scales.
mesh_terms: D000293:Adolescent; D000328:Adult; D001143:Arousal; D002940:Circadian Rhythm; D004644:Emotions / Q000502:physiology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D013315:Stress, Psychological / Q000523:psychology