DIURNAL MOOD VARIATION By N., Pam M.S. - April 7, 2013 Seen in some bipolar and depressive disorders where daily changes in mood happen. See seasonal affective disorder. DIURNAL MOOD VARIATION: "A diurnal mood variation sees elevated mood during the dayt and depressed mood at night." Related Psychology Terms MOOD DISORDER BIPOLAR DISORDERS AFFECTIVE DISORDER MOOD STABILIZERS PHOTOTHERAPY UNIPOLAR DEPRESSION SELF-PUNISHMENT PSYCHOLEPSY CYCLOTHYMIC DISORDER SERTRALINE Cite this page: N., Pam M.S., "DIURNAL MOOD VARIATION," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/diurnal-mood-variation/ (accessed February 5, 2020).