A discrepancy‐arousal explanation of mutual influence in expressive behavior for adult and infant‐adult interaction1

Abstract

The expressive behaviors of adult and infant‐adult dyads are marked both by patterns of reciprocity and compensation. An alternative to the equilibrium and arousal‐labeling explanations of these findings is offered in the discrepancy‐arousal model. This model is similar to its predecessors in that physiological, cognitive, and affective components are central. However, the arousal component is given a more prominent role in predicting reciprocal or compensatory responses than in the arousal‐labeling theory. This modification permits discrepancy‐arousal to account for the reaction time of moment‐to‐moment influence, for the cycling of expressive involvement, for infant‐adult patterns of reciprocity and compensation, and for the etiology of adult patterns of mutual influence. Evidence supporting the discrepancy‐arousal position is reviewed. Predictive hypotheses are proposed and contrastive experimental tests are outlined.

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