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Any of several mental disorders characterized by dramatic changes or extremes of mood. The major affective disorders include bipolar disorderwhich may include manic and depressive episodesand major depressive disorder. Among the symptoms of manic episodes are elevated, expansive, or irritable moods, with hyperactivity, pressured (rapid and forced) speech, and inflated self-esteem. Depressive episodes and major depressive disorder are characterized by dejected moods, lack of interest in life, sleep disturbances, agitation, and feelings of worthlessness or guilt.
Variants of AFFECTIVE DISORDER
affective disorder also called mood disorder
This entry comes from Encyclopædia Britannica Concise. For the full entry on affective disorder, visit Britannica.com.