Working memory impairment is well established in psychotic disorders. However, the relative magnitude, diagnostic specificity, familiality pattern, and degree of independence from generalized cognitive deficits across psychotic disorders remain unclear.
Hill KS, Buchholz A, Amsbaugh H, Reilly JL, Rubin LH, Gold JM, Keefe RS, Pearlson GD, Keshavan MS, Tamminga CA, Sweeney JA. Working memory impairment in probands with schizoaffective disorder and first degree relatives of schizophrenia probands extended beyond deficits predicted by generalized neuropsychological impairment. Schizophrenia Research, 2015; 166(1-3): 310-315.