| Abstract: | Assessed the relative efficacy of EMG biofeedback training to reduce tension levels in Ss characterized either by the presence of the coronary-prone behavior pattern (Type A) or by its absence (Type B). 55 college students, classified as Type A or B on the basis of Jenkins Activity Survey (Form T) scores, were randomly assigned to either a biofeedback or a control group. Ss met for 6 training sessions, then returned for a 7th session to perform without biofeedback a series of easy (4-digit recall) and difficult (7-digit recall) tasks. Biofeedback Ss attained a greater degree of relaxation during training than did control Ss, regardless of A/B status. Also, biofeedback Ss maintained greater relaxation during task performance than did control Ss. Across groups, Type A's performed significantly better than Type B's on difficult tasks, and although Type A biofeedback Ss had EMG levels as high as Type B controls for the actual duration of performance tasks, they maintained significantly lower EMG levels than either group prior to, between, and after performance tasks. (22 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
