Postmortem and neuroimaging studies have provided evidence of structural and physiological abnormalities in the brains of patients with schizophrenia.  Studies using neuroimaging techniques, studies investigating cognitive impairment, genetic investigations and studies of response to…

The symptoms of schizophrenia are important both clinically and theoretically. There is great interest in identifying the course and characteristics of the symptoms in schizophrenia to determine the differential…

Categorical models
Interest in negative symptoms re-emerged in the 1970s,  as exemplified by Strauss and Carpenter (1974) and Andreasen (1979a,b,c). The turning point came perhaps from the works of Crow who, in 1980,…

Schizophrenia is characterized by a multiplicity of symptoms arising from almost all domains of mental function, e.g. language,  emotion,  reasoning,  motor activity and perception.

These symptoms vary between patients, creating very diverse symptom…