The impact of a history of psychotic symptoms on cognitive function in euthymic bipolar patients: a comparison with schizophrenic patients and healthy controls

BACKGROUND: About two-thirds of patients with bipolar disorder (BD) have a lifetime history of at least one psychotic symptom. OBJECTIVE: To compare the neurocognitive performance of four groups: BD patients with and without a history of psychotic symptoms (BD HPS+ and BD HPS-, respectively); patients with schizophrenia (SZ); and healthy control (HC) subjects.