This study examined the extent to which individuals with a lifetime diagnosis of recurrent unipolar disorder endorse experiencing manic/hypomanic symptoms over their lifetimes and compared their reports with those of patients with bipolar I disorder.
Department of Psychiatry, Neurobiology, Pharmacology and Biotechnology, University of Pisa, Via Roma no. 67, 56100 Pisa, Italy. gcassano@psico.med.unipi