Correction

In the article titled "Abnormal fMRI Response of the Dorsolateral Prefrontal Cortex in Cognitively Intact Siblings of Patients With Schizophrenia" by Callicott et al. (Am J Psychiatry 2003;160:709–719), a typographical error resulted in decimal points being omitted from the reaction time data in Table 1. The mean reaction times (in msec) for the unaffected siblings and comparison subjects should have been 117.5 (SD=14.7) and 118.2 (SD=19.0), respectively, on the 0-back working memory task and 108.3 (SD=30.4) and 104.4 (SD=21.3) on the 2-back task. This change does not alter any of the study"s statistical analyses or significant findings.