UPDATE ON SCHIZOPHRENIA – A pooled analysis of six randomized trials of olanzapine and comparator atypical antipsychotic agents (n=1990) reports that five distinct patterns of response can be identified in patients with schizophrenia starting treatment (Stauffer et al. Schizophr Res 2011; epublished April 12, 2011). Response patterns were measured with the Positive and Negative Syndrome Scale (PANSS).