Agency attribution and visuospatial perspective taking.

We tested whether processes that evoke agency interpretations and mental state attributions also lead to adoption of the actor's visuospatial perspective by the observer. Agency and mental state interpretations were manipulated by showing different film clips involving two triangles (the Frith-Happé animations). Participants made speeded spatial decisions while watching these films. The responses in the spatial task could be either the same or different when given from the perspective of the participant versus the perspective of one of the triangles. Reaction times were longer when the perspectives of the participants and triangles differed than when they were the same. This effect increased as the need to invoke agency interpretations in order to understand the films increased, and it increased for those films that had previously been shown to evoke mental state attributions. This demonstrates that processing of an agent's behavior co-occurs with perspective adoption, even in the case in which triangles are the actors.