Palmer BW, Dawes SE, & Heaton RK. (2009). What Do We Know About Neuropsychological Aspects Of Schizophrenia? Neuropsychology Review . Jul 30 [e-pub ahead of print]. Application of a neuropsychological perspective to the study of schizophrenia has established a number of important facts about this disorder. Some of the key findings from the existing literature are that, while neurocognitive impairment is present in most, if not all, persons with schizophrenia, there is both substantial interpatient heterogeneity and remarkable within-patient stability of cognitive function over the long-term course of the illness. Such findings have contributed to the firm establishment of neurobiologic models of schizophrenia, and thereby help to reduce the social stigma that was sometimes associated with purely psychogenic models popular during parts of the 20th century. Neuropsychological studies in recent decades have established the primacy of cognitive functions over psychopathologic symptom...
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from Anthony Risser, Ph.D.