The effects of cognitive and behavioral control on post-stress performance.

A study was designed to investigate the effects of behavioral and cognitive control on post-stress performance. Half of the subjects exposed to loud unpredictable noise bursts were given "behavioral" control (a button which would terminate the noise), while the other half had no behavioral control. In addition, subjects were provided with one of three levels of feedback (success, failure, or no feedback) regarding their performance during the noise. It was expected that information about performance would provide subjects with an increased sense of "cognitive" control which would affect their appraisal of stressful events and their later performance. The results indicated that subjected that subjects given feedback performed better on subsequent tasks than those given no feedback. Perceived behavioral control had little effect on performance. The causal attributions made by subjects were used to interpret these effects. These findings were viewed as supportive of Averill's notion than various types of control are related to stress in a complex fashion. The data may also support Abramson, Seligman, and Teasdale's reformulation of learned helplessness theory.