Empirical validation of primary negative symptoms: independence from effects of medication and psychosis. [electronic resource]
- The American journal of psychiatry Mar 1999
- 406-11 p. digital
Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.
0002-953X
10.1176/ajp.156.3.406 doi
Adult Age of Onset Antipsychotic Agents--adverse effects Anxiety Disorders--diagnosis Basal Ganglia Diseases--chemically induced Depressive Disorder--diagnosis Factor Analysis, Statistical Haloperidol--adverse effects Humans Longitudinal Studies Male Middle Aged Motivation Psychiatric Status Rating Scales--statistics & numerical data Psychometrics Schizophrenia--diagnosis Schizophrenic Psychology