The effects of stress (threat of shock) on basal skin resistance and GSR nonspecific responses were investigated for Ss who differed in anxiety levels on the Taylor MA scale. 26 high-anxious (HA) and 26 low-anxious (LA) Ss were randomly assigned to stress and nonstress conditions, yielding 4 groups. First, all Ss rested; then both stress groups were threatened with electric shock, while both nonstress groups continued resting; finally, all Ss rested again. During the 2nd period GSR nonspecifics increased and basal resistance decreased for the shock-threat groups only, as expected; however, during the final period (after a 15-min interview) GSR nonspecifics decreased to the prethreat level for the shock-threat groups, but basal resistance continued to decrease for all Ss. Both GSR indices were unrelated to individual differences in anxiety level. The 2 GSR indices reflect different phenomena. (31 ref.) (PsycINFO Database Record (c) 2016 APA, all rights reserved)