Cognitive dysfunction is a characteristic feature of patients with schizophrenia. Traditionally, the main distinction between “dementia praecox” and “manic-depressive insanity” was in fact the cognitive outcome during the course of the disease .
For the assessment of cognitive dysfunction both large, detailed instruments  and brief screening scales for quick and multiple use [3,4] are available.
Recently, the role of social cognition has been thoroughly examined showing differential effects .
Treatment of cognitive dysfunction in schizophrenia comprises adherence to a therapy with atypical antipsychotics as well as specific treatment programs for cognitive  and social cognitive [7,8] dysfunction.
Disclosure of interest
The authors have not supplied their declaration of competing interest.