89 rate. Additionally, one subject was removed from the skin conductance analysis due to faulty electrode connections. Heart rate Average heart rate change from baseline was examined using a Repeated Measures Analysis of Variance (ANOVA) with group (LHD, LH NCS, RHD, RH NCS) as the between subject factor and tone (low, high) as the within subject factor. The low tone was the novel tone. The main effect for group [F(3,43) = .419, P = .740], tone [F(l,43) = 1.634, P = .208], and the interaction between group and tone [F(3,43) = .218, P = .884] were all nonsignificant. See Table C-l in Appendix C. A repeated measures analysis of variance (ANOVA) was employed to examine D1 using group as the between subject factor (LHD, LH NCS, RHD, RH NCS) and tone (high, low) and block (1 to 8) as the within subject factors. Results revealed a main effect for tone [F(l,43) = 8.63, P < .01] such that there was a greater D1 for the low tone (the novel tone) compared to the high tone (the repeated tone). The mean D1 for the low tone was -3.4 (sd=4.40) bpm change from baseline whereas the mean D1 for the high tone was -2.5 (sd=3.82) bpm change from baseline. None of the other effects were significant. See Table C-2, the full ANOVA table, in Appendix C.