Background: Cognitive deficits have been well-established among patients with severe mental illness. The aim of this study was to clarify the patterns of cognitive deficits in drug-naive patients with schizophrenia and non-psychotic major depressive disorder (MDD) as compared with controls.
Methods: Thirty drug-naïve participants with schizophrenia, 30 counterparts with non-psychotic MDD, and 30 age-, sex-, and education years-matched healthy controls were recruited.