This research examined the coordination of interrogator and suspects' verbal behavior in interrogations. Sixty-four police interrogations were examined at the aggregate and utterance level using a measure of verbal mimicry known as Language Style Matching. Analyses revealed an interaction between confession and the direction of language matching. Interrogations containing a confession were characterized by higher rates of the suspect matching the interrogators' language style than interrogations without a confession. A sequence analysis of utterance-level Language Style Matching revealed a divergence in the type of matching that occurred across outcome. There was a linear increase in interrogator-led matching for interrogations containing a confession and an increase in suspect-led matching for nonconfession interrogations. These findings suggest that police interrogations play out, in part, at the basic level of language coordination.

When people occupy different social positions within a cooperative task they experience discrepant role and situation demands and thus have divergent perspectives. The reported research predicts that exchanging social positions within a cooperative task can overcome divergences of perspective. This prediction was tested in two experiments using the Communication Conflict Situation. The first experiment (n = 88) found that position exchange increased the ability of dyads to solve a communication conflict arising through discrepant perspectives. The second experiment (n = 120) found that the effect of position exchange exceeds that of purely cognitive perspective taking, thus suggesting that it cannot be reduced to a purely cognitive process. Exchanging social positions is a newly identified and powerful social mechanism through which perspective taking, within a cooperative task, can be enhanced.

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The hand is a reliable and ecologically useful perceptual ruler that can be used to scale the sizes of close, manipulatable objects in the world in a manner similar to the way in which eye height is used to scale the heights of objects on the ground plane. Certain objects are perceived proportionally to the size of the hand, and as a result, changes in the relationship between the sizes of objects in the world and the size of the hand are attributed to changes in object size rather than hand size. To illustrate this notion, we provide evidence from several experiments showing that people perceive their dominant hand as less magnified than other body parts or objects when these items are subjected to the same degree of magnification. These findings suggest that the hand is perceived as having a more constant size and, consequently, can serve as a reliable metric with which to measure objects of commensurate size.

Drawing on theories of mimicry as a schema-driven process, we tested whether the degree of verbal mimicry is dependent on the congruence between interactants' power dynamic (symmetric vs. asymmetric), task type (cooperative vs. competitive) and interaction context (negotiation vs. social). Experiment 1 found higher verbal mimicry amongst dyads who successfully completed a cooperative problem-solving task compared to those who did not, but only under conditions of symmetric, not asymmetric, power. Experiment 2 had dyads complete either a cooperative or a competitive negotiation task, under conditions of symmetric vs. asymmetric power. Verbal mimicry was associated with improved negotiation outcomes under conditions of cooperation and symmetry, and competition and asymmetry. Experiment 3 completes this picture by separating cooperativecompetitive orientation from the interaction context. Consistent with Experiment 2, verbal mimicry was associated with task success during a negotiation context with asymmetric power, and during a social interaction context with symmetric power. Our results point to the contextual link between verbal mimicry and task outcome. Public Significance Statement:This research tests the impact of various contextual influences on the relationship between verbal mimicry and task success; namely power dynamic (symmetric vs. asymmetric dynamic), task type (cooperative vs. competitive) and interaction context (negotiation vs. friendly conversation). Whereas the traditional view is that verbal mimicry elicits positive behaviors that lead to more successful interactions, we suggest that this view is too simplistic. Our findings aid in the understanding of the types of conditions under which verbal mimicry is associated with interaction success and when it is best controlled to avoid harming interactions.