Fig. 2.

The effects of COMT Val158Met polymorphism on antisaccade parameters in schizophrenic patients (Sch) and healthy controls (Con). a Antisaccade error rate (%), **p < 0.01 relative to the carriers of the same COMT genotype from the Con group. b Antisaccade latency (ms), *p < 0.05 relative to the carriers of the same COMT genotype from the Con group. c Coefficient of variation of antisaccade latency, (%). **p < 0.01 relative to the carriers of the Val/Val COMT genotype from the Con group, ^## p < 0.01 relative to Val/Met carriers from the Sch group, ^{^} p < 0.05 relative to Met/Met carriers from Sch group