105
Table 4-4 Mean Change Scores and Standard Deviations for
Facial EMG during the Shock Condition
CEMG
ZGL
ZGR
LHD
.011 (.077)
-.009 (.111)
-.001 (.094)
LH NCS
.006 (.094)
.015 (.076)
-.005 (.107)
RHD
.031 (.175)
.010 (.115)
.013 (.100)
RH NCS
.008 (.102)
.023 (.097)
.013 (.107)
There was, however, an interaction between group and
block for zygomatic left [F(9,132) = 2.45, P < .01]. The
ANOVA table, Table C-33, is presented in Appendix C. The
group by block interaction was further explored by examining
block differences separately for each group. The was a
significant difference between the groups for block 1
[F(3,44) = 3.054, P < .05], but not block 2 [F(3,44) =
1.657, P = .1901], block 3 [F(3,44) = 1.543, P =.2167], or
block 4 [F(3,44) = 1.743, P = .1720]. The results for block
analyses are provided in Tables C-34, C-35, C-36, and C-37.
Further exploration of the main effect of group which
was significant in the analysis of block 1 was conducted
using independent t-tests with a Bonferroni correction.
Results of these analyses revealed that none of the groups
were significantly different from one another. These
results are depicted in Table C-38 of Appendix C. The means
and standard deviations are as follows: LHD patients (mean=-
.047, sd=.082) LH NCS (mean=.013, sd=.042), RHNCS
(mean=.025, sd=.060), RHD (mean=.020, sd=.076).