following Al within the 6-second period). One subject was excluded from the LH NC group due to unusually high and variable heart rate. Figure C-1, C-2 and C-3 depict the heart rate wave forms in half second intervals for the NCS, RHD, and LHD subjects respectively. Average heart raze change from baseline was examined using repeated measures analyses of variance (ANOVAs) for the shock condition with group as the between subjects factor (LHD, LH NCS, RHD, RH NCS) and condition (shock, no- shock) as the within subject factor. The analyses revealed no group differences [F(3,43) = 1.55, P = .214] as well as no differences between the shock and no-shock conditions [F(1,43) = .050, P = .824]. The interaction of group and condition was also not significant [F(3,43) = .927, P = .436]. The means for each group were as follows: LHD mean=-.558, sd=.985; LH NCS mean=-.130, sd=.650; RHD mean=.139, sd=1.556; RH NCS mean=-.121, sd=l.01. The complete ANOVA table is depicted in Table C-5 of Appendix C. Heart rate D1 was examined using repeated measures analyses of variance ANOVAS) with group (LHD, LH NCS, RHD, RH NCS) as the between subject factor. The two within subject factors were block (1 to 4) and condition (shock and no-shock). Analysis of D1 revealed that there was a significant three way interaction between group, condition, and block [F(9,43) = 2.09, P < 05]. Money of the other interactions or main effects were significant. The full