title: A test of the bidirectional association between sleep and mood in bipolar disorder and insomnia.
abstract: The present study investigates sleep, mood, and the proposed bidirectional relationship between the two in psychiatric disorders. Participants with interepisode bipolar disorder (n = 49), insomnia (n = 34), and no psychiatric history (n = 52) completed seven consecutive days of sleep diaries and mood measures. The interepisode bipolar and insomnia participants exhibited greater sleep disturbance than the healthy control individuals. Negative mood was equally heightened in both interepisode bipolar disorder and insomnia, and there were no differences between the three groups in positive mood. Total wake time was associated with next morning negative mood in bipolar disorder, whereas evening negative mood was associated with subsequent total wake time in both bipolar disorder and insomnia. Additionally, positive mood was associated with subsequent total wake time for the insomnia group. Results support the theory that disruptions in nighttime sleep and daytime mood may be mutually maintaining and suggest the potential importance of transdiagnostic or universal processes.
authors.affiliation: Department of Psychology, University of California, Berkeley, CA 94720-1650, USA.
authors.forename: Lisa S
authors.initials: LS
authors.lastname: Talbot
authors.forename: Susan
authors.initials: S
authors.lastname: Stone
authors.forename: June
authors.initials: J
authors.lastname: Gruber
authors.forename: Ilana S
authors.initials: IS
authors.lastname: Hairston
authors.forename: Polina
authors.initials: P
authors.lastname: Eidelman
authors.forename: Allison G
authors.initials: AG
authors.lastname: Harvey
mesh_terms: D000293:Adolescent; D000328:Adult; D000339:Affect; D000368:Aged; D001714:Bipolar Disorder / Q000175:diagnosis / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011569:Psychiatric Status Rating Scales; D012890:Sleep; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000523:psychology*; D014851:Wakefulness; D055815:Young Adult