Circadian Rhythm Characteristics in Mood Disorders: Comparison among Bipolar I Disorder Bipolar II Disorder and Recurrent Major Depressive Disorder

摘要

ObjectiveMorningness/eveningness (M/E) is a stable characteristic of individuals. Circadian rhythms are altered in episodes of mood disorder. Mood disorder patients were more evening-type than normal population. In this study, we compared the characteristics of M/E among the 257 patients with bipolar I disorder (BPD1), bipolar II disorder (BPD2) and major depressive disorder, recurrent (MDDR).