 The subjects receiving fixed dose antidepressants or mood stabilizers prior to their enrollment in the study will be continued on these medications throughout the study. No dose adjustment of antidepressants or mood stabilizers will be allowed. At the end of study, participants can choose to continue their study medications under the care of one of study physicians or one of the other psychiatrists at Psychiatric outpatients service for adults Beth Israel Medical Center 16 Street at First Avenue, 2 Bernstein. Those wishing to stop the study medications at the end of the study will be able to do so under the supervision of one of the study physicians. Paroxetine will be tapered over a two-week period to avoid SSRI withdrawal. Risperidone will be stopped abruptly since no withdrawal symptoms have been reported in the literature making risperidone taper unnecessary. 