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exploration of this main effect revealed that the RHD and

LHD groups had a significantly smaller difference between

the stimulus and control trials compared to the RH NCS, but

not the LH NCS. As in the ANOVA, the interaction between

task and group approached significance.

 The main effect of group and the group by task

 interaction for the magnitude of SCR remained significant.

 To review, the post-hoc analyses revealed that none of the

 groups significantly differed from one another in change in

 magnitude between the stimulus and control trials. The

 interaction of task and group, however, revealed that the

 LHD group had a significantly smaller difference between the

 shock and no-shock condition in SCR magnitude compared to

 the LH NCS. Also, the RHD group had a significantly smaller

 SCR magnitude compared to the RH NCS and LH NCS. There were

 no significant differences between the group when change in

 SCR magnitude between the reward and no-reward condition was

 examined.

 Experiment 2

 To review, Experiment 2 consisted of two conditions,

shock and reward. Within each condition, there were two

trials, stimulus and control. Each trial consisted of a

five minute anticipation period during which the subjects

were administered the Positive and Negative Affect Schedule

and the Self Assessment Manikin. Subjects were instructed

that at the end of the shock trial, they would receive one