The authors sought to compare the effects of olanzapine, quetiapine, and risperidone on neurocognitive function in patients with early psychosis.
Keefe RSE, Sweeney JA, Gu H, Hamer RM, Perkins DO, McEvoy JP, Lieberman JA. Effects of olanzapine, quetiapine, and risperidone on neurocognitive function in early psychosis: A randomized, double-blind 52 week comparison. The American Journal of Psychiatry, 2007; 164 (7): 1061-1071.