Psychological Acute Mania typically occurs as a symptom of bipolar disorder (a mood disorder characterized by both manic and depressive episodes). Individuals experiencing a manic episode often have feelings of self-importance, elation, talkativeness, sociability, and a desire to embark on goal-oriented activities, coupled with the less desirable characteristics of irritability, impatience, impulsiveness, hyperactivity, and a decreased need for sleep. (Note: Hypomania is a term applied to a condition resembling mania.
It is characterized by persistent or elevated expansive mood, hyperactivity, inflated self-esteem, etc., but of less intensity than mania.) Severe mania may have psychotic features.