97
differences between groups for block one [F(3,43) = .922, P
= .438], block three [F(3,43) = .705, P = .554], and block
four [F(3,43) = .945, P = .427] However, a significant
difference was found between the groups at block two
[F(3,43) = 5.56, P < .01]. See the ANOVA tables in Appendix
C, Tables C-16, C-17, C-18, and C-19.
Further exploration of the group differences during
block 2, independent t-tests with a Bonferroni correction
revealed that the LHD patients has a significantly lower D2
than the CONS [T(1,33) = -3.26, P <. 01] and RHD [T(l,22) =
-3.27, P < .01 groups. The t-tests are presented in Table
C-20 in Appendix C.
To sum, overall HR did not differ between the shock and
control condition or between groups. Additionally, no
significant group, condition, or block differences were
revealed when examining A1. Examination of D1 revealed a
three way interaction, that upon further exploration yielded
no significant differences. One significant finding was
revealed in D2. Specifically, there was a significantly
greater D2 deceleration for the LHD group then the RHD group
and LH NCS during block 2 only.
Skin conductance. Skin conductance was examined by
exploring the percentage of responses (responses greater
than .02 micro sieman) and recoded range corrected skin
conductance response magnitude (responses that were greater
than .02 micro sieman were corrected based on individual