ABSTRACT
This chapter explores that interaction theory (IT) offers valuable resources for current discussions about sharing. It discusses one of the main strands of empirical evidence presented in support of IT coming from perceptual crossing experiments. The chapter investigates that to what extent IT sheds light on the phenomenon of shared cognition. As far as perceptual crossing experiments are concerned, it suggests that the prospects for developing strong claims concerning the constitutive character of interactive processes are more suitable for shared cognition than for social cognition. The chapter develops the concept of interaction as an alternative to the classic third-personal approaches to social cognition research. When there is mutual interdependence involved, whether or not it is acknowledged by the participants, the question is not merely about how individuals understand each other, but rather about how they can understand, coordinate, and accomplish tasks collectively.
