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Facial electromyography
A computer program calculated baseline corrugator
electromyography (CEMG), left zygomatic electromyography
(ZGL), and right zygomatic electromyography (ZGR) along with
average CEMG, ZGL, and ZGR over the six second period for
each block within each experimental condition. As a
consequence, for each trial block, there was one baseline
and one average score for each stimulus and control trial
for each of the three facial muscles regions: CEMG, ZGL,
ZGR. Difference scores for each of the variables was
obtained for each block by subtracting the average score
from the average baseline score for each subject.
Experiment 2: Subjective Report of Emotion During
Anticipatory Shock and Reward Tasks by RHP, LHP, and NHD
Patients
This experiment also consisted of two parts, an
anticipatory anxiety task and an anticipatory reward task.
Both were similar in kind to those of Experiment 1 except
that a 5 minute anticipatory interval was used in this study
in order to give the subjects time to complete verbal report
questionnaires about their affective state during
anticipation. In this experiment, the anticipatory shock
task and the anticipatory reward task were counterbalanced
by subject within each group.
Stimuli and Apparatus
The stimuli and apparatus used to dispense the shocks
were identical to used in Experiment 1. Additionally, two