CORRECTION
In D. R. Weinberger et al., "The Frontal Lobes and Schizophrenia," (Fall 1994; 6:419-427), p. 424, column 2, ll. 24-27 should read (change in italics): "For example, in the left prefrontal cortex there is good discrimination of affected from unaffected twins. Almost every affected twin has less activity there during the WCST."
