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facial, and verbal report) during the anticipatory anxiety
(negative emotion) situation relative to their responses
during anticipatory reward (positive emotion). The LHD
group would show the opposite pattern.
Specific Predictions for Experiment 1: Psvchophvsioloqical
Arousal and Facial EMG during Anticipatory Anxiety and
Anticipatory Reward in Patients with RHP and LHD
Normal control group (NHD)
In line with previous research, it is anticipated that
the normal control group (NHD) will experience unpleasant
emotion (anticipatory anxiety) during the shock anticipation
condition and more pleasant emotion (anticipatory reward)
during the prize anticipation. Specific predictions
regarding psychophysiological responsivity (HR, SCR) and
facial EMG are derived from empirical research with emotion-
inducing stimuli. A replication of previous findings is
expected such that:
1. Compared to baseline HR, a HR triphasic response (Dl,
Al, D2) will be observed during shock anticipation and
prize anticipation. The A1, acceleratory peak, is
expected to be greater during shock than during prize
anticipation. In some subjects, however, deceleration
only may be observed during prize anticipation.
Relative to the experimental trials, attenuated HR
change will occur during control trials.
2. Compared to baseline SCR, SCR will be greater during
shock and prize anticipation compared to no shock/no