Abstract
The present study examined the effects of four types of intergroup orientation on interpersonal postural mirroring both within and between groups. One hundred and four female subjects were assigned to quartets, each made up of two dyads in one of four conditions: (1) Control; (2) coacting; (3) cooperating; and (4) competing. As predicted, results showed greater intergroup relative to intragroup mirroring for cooperating dyads than for competing dyads. Unexpectedly, subjects in the coacting condition showed a significantly higher level of intergroup mirroring than any other condition. Both results are interpreted as evidence that postural mirroring is an obvious yet unobtrusive indicator of openness to interpersonal involvement.
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