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gyrus (areas 40 and 39, respectively). The fourth non-

responder, R11, did not have a lesion involving areas 39 and

40. R11, however, reported only a small change (1 point

total on valence, arousal, and dominance) in emotional

experience during the shock compared to the control

condition. No clear pattern of neurological impairment was

apparent in the 4/12 (33%) of LHD subjects who were non-

responders.

Percentage of SCRs

 Of the RHD subjects who had responses, all but one,

R14, demonstrated a greater percentage of responses during

the shock compared to the no-shock condition. Although R14

did not demonstrate greater SCRs during shock compared to

the no-shock condition, he reported increased

unpleasantness, arousal, and loss of control during shock

compared to the no-shock control.

 Within the LHD group, 5 subjects who were responders,

displayed a greater percentage of responses during the shock

compared to the no-shock conditions. One LHD subject had

the same percentage of responses during the shock compared

to no-shock trials and two subjects had a greater number of

responses during the no-shock compared to the shock trials.

All three of these subjects who did not display the expected

difference in the percentage of SCRs during shock compared

to the no-shock condition reported the expected changes in

emotional experience.