The period of normalcy is seen between two psychotic episodes. The diagnosis is: (A) Schizophrenia, (B) Manic depressive psychosis (MDP), (C) Alcoholism, (D) Depression
Answer is B. Bipolar mood disorder earlier known as manic-depressive psychosis is characterised by recurrent episodes of mania and depression in the same patient at different times. These episodes can occur in any sequence. (Ref: a sho textbook of psychiatry, Niraj Ahuja,7th edition, pg no73)