Assessment of negative symptoms and depression in schizophrenia: Revision of the SANS and how it relates to the PANSS and CDSS

Addington, 1993, Assessing depression in schizophrenia: the Calgary Depression Scale, Br. J. Psychiatry Suppl., 163, 39, 10.1192/S0007125000292581 Andreasen, 1982, Negative symptoms in schizophrenia. Definition and validation, Arch. Gen. Psychiatry, 39, 784, 10.1001/archpsyc.1982.04290070020005 Andreasen, 1982, Negative v positive schizophrenia. Definition and validation, Arch. Gen. Psychiatry, 39, 789, 10.1001/archpsyc.1982.04290070025006 Carpenter, 1985, Treatment of negative symptoms, Schizophr. Bull., 11, 440, 10.1093/schbul/11.3.440 Guy, 1976, Abnormal involuntary movement scale, 534 Kay, 1987, The positive and negative syndrome scale (PANSS) for schizophrenia, Schizophr. Bull., 13, 261, 10.1093/schbul/13.2.261 Keefe, 1992, Empirical assessment of the factorial structure of clinical symptoms in schizophrenia: negative symptoms, Psychiatry Res., 44, 153, 10.1016/0165-1781(92)90049-9 Kelley, 1999, Empirical validation of primary negative symptoms: independence from effects of medication and psychosis, Am. J. Psychiatry, 156, 406, 10.1176/ajp.156.3.406 Kirkpatrick, 2006, The NIMH-MATRICS consensus statement on negative symptoms, Schizophr. Bull., 32, 214, 10.1093/schbul/sbj053 Lader, 2000, Rating scales in schizophrenia: a review of their usefulness for assessing atypical antipsychotics, CNS Drugs, 14, 23, 10.2165/00023210-200014010-00003 Maggini, 2006, Exploring depression in schizophrenia, Eur. Psychiatry, 21, 227, 10.1016/j.eurpsy.2005.07.001 Milev, 2005, Predictive values of neurocognition and negative symptoms on functional outcome in schizophrenia: a longitudinal first-episode study with 7-year follow-up, Am. J. Psychiatry, 162, 495, 10.1176/appi.ajp.162.3.495 Mueser, 1994, A multisite investigation of the reliability of the Scale for the Assessment of Negative Symptoms, Am. J. Psychiatry, 151, 1453, 10.1176/ajp.151.10.1453 Peralta, 1995, Negative symptoms in schizophrenia: a confirmatory factor analysis of competing models, Am. J. Psychiatry, 152, 1450, 10.1176/ajp.152.10.1450 Peralta, 1992, Are there more than two syndromes in schizophrenia? A critique of the positive-negative dichotomy, Br. J. Psychiatry, 161, 335, 10.1192/bjp.161.3.335 Peralta, 1995, Positive and negative symptoms/syndromes in schizophrenia: reliability and validity of different diagnostic systems, Psychol. Med., 25, 43, 10.1017/S0033291700028075 Robinson, 2006, Randomized comparison of olanzapine versus risperidone for the treatment of first-episode schizophrenia: 4-month outcomes, Am. J. Psychiatry, 163, 2096, 10.1176/appi.ajp.163.12.2096 Sayers, 1996, Factor structure and construct validity of the Scale for the Assessment of Negative Symptoms, Psychol. Assess., 8, 269, 10.1037/1040-3590.8.3.269 Siris, 1995, Depression in schizophrenia, 155 Tapp, 2001, Depression in patients with schizophrenia during an acute psychotic episode, Compr. Psychiatry, 42, 314, 10.1053/comp.2001.24577