100

 Due to the large amount of variance in the percentage

 of responses between subjects, arcsin transformations were

 used and the data was reanalyzed. Using the transformed

 data, the main effect for group, main effect of tone, and

 the interaction remained significant.

 Repeated Measures Analyses of Variance were used to

analyze the recorded range corrected skin conductance

responses (SCR). As mentioned in the data reduction

section, the range corrected SCR was corrected by denoting

the largest response for each subject as 100%. Each of the

smaller responses for that subject was recorded as a

percentage of the largest response. The data was recorded by

changing all trials in which the actual SCR was less than

.02 micro sieman to 0%. The between subjects factor was

group (LH, LH NCS, RH, RH NCS) and the within subject

factors were condition (shock and no-shock) and block (1 to

4).

 Examination of the recorded range corrected skin

conductance responses (SCR) for the anticipatory shock task

revealed main effects for group [F(3,43) = 2.99, P < .05] ,

block [F(3,43) = 14.05, P < .001], and condition [F(1,43) =

23.36, P <.001] There were also significant interactions

between condition and group [F(3,43) = 6.60, P < .001] and

block and condition [F(3,43) = 3.83, P < .05]. The ANOVA

table, Table C-25, is presented Appendix C.