Cognition in schizophrenia: Past, present, and future

Abstract

Schizophrenia Research: Cognition will serve an important function – a place where interests converge and investigators can learn about the recent developments in this area. This new journal will provide rapid dissemination of information to people who will make good use of it. In this initial article, we comment globally on the study of cognition in schizophrenia: how we got here, where we are, and where we are going. The goal of this first article is to place the study of cognition in schizophrenia within a historical and scientific context. In a field as richly textured as ours it is impossible to hit all the important areas, and we hope the reader will forgive our omissions. Phrased in cognitive terms, our limited presentation of the past is a matter of selective memory, the present is a matter of selective attention, and the future is a matter of selective prospection. This broad introduction emphasizes that cognition in schizophrenia provides clues to pathophysiology, treatment, and outcome. In fact, the study of cognitive impairment in schizophrenia has become wholly intertwined with the study of schizophrenia itself.

Social Cognition, Negative Symptoms and Psychosocial Functioning in Schizophrenia

“…In Eugene Bleuler's seminal works on schizophrenia, nearly a century ago, it was clear that he had a perceptive understanding of cognitive impairment as a core part of this psychotic disorder; that was consubstantiated in the definition of his fundamental symptoms-substantially cognitive in their essence, yet distinguished from what was observed in organic dementias [1,2]. Nonetheless, modern diagnostic criteria on schizophrenia have relied heavily on positive symptoms, based on the prescient contributions of other authors such as Emil Kraeplin and Kurt Schneider.…”

Review paper. Neuropsychological dimension of schizophrenia - evaluation possibilities and therapeutic implications

“…Już Kreapelin za charakterystyczną cechę schizofrenii uznał pogarszanie się funkcji poznawczych od okresu adolescencji, nazywając chorobę dementia praecox [1, 2,3]. Dla Bleulera zaburzenia poznawcze należały do najważniej-szych, osiowych objawów schizofrenii [2,4].…”

“…Dla Bleulera zaburzenia poznawcze należały do najważniej-szych, osiowych objawów schizofrenii [2,4]. Cameron badając zaburzenia myślenia w schizofrenii zaproponował termin ,, overinclusion ,, , opisujący nadmierne poszerzanie zakresu pojęć [2,5].…”

“…Already Kreapelin found the deterioration of the cognitive functions from adolescence as characteristic feature for schizophrenia, calling it dementia praecox disease [1, 2,3]. For Bleuler cognitive disorders were one of the most important axial symptoms of schizophrenia [2,4].…”

“…For Bleuler cognitive disorders were one of the most important axial symptoms of schizophrenia [2,4]. Cameron while investigating schizophrenia thinking disorders proposed the term "overinclusion", describing the excessive extension of the scope of concepts [2.5].…”