Stress-Buffering Effects of Self-Complexity: Reduced Affective Spillover or Self-Regulatory Processes?

Abstract

Stress-buffering effects of high self-complexity can be explained by two different theoretical models. According to the affective spillover model (Linville, 1985), a large number of independent self-aspects prevents a generalization of affect after negative but also after positive events. According to the self-regulatory processes model, a large number of self-aspects promotes efficient self-regulation, which is restricted to negative events. Effects of negative and positive events on subsequent changes in depression were investigated in a prospective design. Having a large number of self-aspects was found to attenuate adverse effects of negative events on depression, irrespective of the distinctness of the self-aspects. No buffering effects were observed regarding the relation between positive events and depression. The self-regulatory processes model also predicts that for people with a large number of self-aspects, an increasing number of positive experiences should be generated in response to high levels of stress. This prediction was tested and confirmed in a second part of the study.