140

 Within the LHD group, one subject had a minimal change

 in rated emotional experience (1 point change in combined

 valence, arousal, and dominance). This subject also was one

 of the non-responders.

 Subject L7

 Examination of the LHD subjects revealed that one

 individual, L7, had much greater percentage of SCRs and

 higher SCR magnitude compared to the other LHD subjects. L7

 was the youngest of the LHD group. L7 was also the subject

 who had SCR measured on the right hand because his left arm

 had been amputated. As mentioned above, it was decided to

 include this subject in the analyses because recent evidence

 suggests that there are no differences in bilateral SCR

 measurements in brain damaged subjects (Tranel & Damasio,

 1994).

 To examine the influence of L7 on the overall SCR

magnitude analyses, L7 was removed and the magnitude

analyses were conducted again. T-tests were used to explore

the tone by group interaction, using a Bonferroni correction

of p < .008. The results revealed that along with the RHD

group, the LHD group also had significantly smaller

responding than the LH NCS [T(1,21) = -3.43, P < .008] and

RH NCS [T(1,21) = -3.08, P < .008] during the shock

condition. As in the above analyses, there are no

significant group differences during the no-shock condition.

Thus, when L7 is removed from the analyses, the LHD group