ratings of unpleasantness, arousal, powerlessness on

 the Self Assessment Manikin, and the negative affect

 factor score of the Positive and Negative Affect

 Schedule) than the RHD group. The LHD and NHD groups

 will report greater state anxiety during shock than no

 shock control trials. The difference in reported

 anxiety will be attenuated in RHD patients between

 shock and no shock control trials.

 2. During prize anticipation, the LHD and NHD subjects will

 report greater positive emotions (based on dimensional

 ratings of pleasantness, arousal, and dominance on the

 Self Assessment Manikin, and the positive affect factor

 score of the Positive and Negative Affect Schedule)

 compared to the RHD. LHD and NHD groups will report

 more positive emotions during prize compared to no

 reward trials. The difference in reported positive

 emotions will be smaller during prize compared to no

 reward trials in RHD patients.

B) Bivalent Emotion Model: Predictions based on the

bivalent view are:

1. During shock anticipation, the LHD subjects will report

 greater or equal anxiety compared to the NHD patients,

 whereas RHD subjects will report less anxiety than the

 NHD group. More anxiety will be reported during shock

 compared to no shock trials for LHD and NHD patients.