Table 2

Mean (SD) of saccadic eye movement measures during risperidone and conventional APD conditions of study

AntisaccadeGap random
Saccadic measureRisperidone (n=12) 
 (mean (SD))Conventional APD 
 (n=12) 
 (mean (SD))Risperidone (n=12) 
 (mean (SD))Conventional APD
 (n=12) 
 (mean (SD))
*Two tailed p=0.005, (Wilcoxon signed ranks test, z value=−2.82); APD, antipsychotic drug; NA, not applicable.
Error rate (%)46.4 (21.9)*64.9 (19.0)*NANA
Peak velocity307.49 (123.5)311.9 (93.4)381.6 (114.0)405.6 (79.2)
Latency465.2 (93.4)495.9 (84.5)248.2 (47.3)268.9 (44.7)
EP gain68.2 (37.9)32.7 (50.2)109.0 (50.6)104.7 (36.2)
FEP gain81.6 (35.7)70.9 (36.5)100.3 (25.2)100.0 (18.8)