| Abstract: | In Experiment 1, subjects who received feedback contingent on short interbeat intervals (relative to a baseline period) learned to accelerate their heart rates, but subjects who received noncontingent feedback did not. In Experiment 2, subjects who were exposed to noncontingent aversive noises later showed significant performance deficits on both an instrumental and a cognitive task. Attributional style predicted helplessness deficits on the cognitive but not the instrumental task. Experiment 3 demonstrated that experimentally induced helplessness interferes with biofeedback learning. Attributional style did not predict the occurrence of helplessness deficits in this context. Results are discussed in terms of the nature of biofeedback training and the range of behaviors that learned helplessness training affects. |
