Dissecting negative symptoms of schizophrenia: History, assessment, pathophysiological mechanisms and treatment.

Galderisi S Department of Psychiatry, University of Naples SUN, Naples, Italy. Electronic address: silvana.galderisi@gmail.com.
Färden A NORMENT and K.G. Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, 0424 Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
Kaiser S Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric Hospital University of Zurich, Zurich, Switzerland.