Establishing conversational engagement and being effective: The role of body movement in mediated communication

A model for investigating the effects of body movement on conversational effectiveness in computer-mediated communication (CMC) is developed based on theories of motor cognition and embodiment. Movement is relevant to a wide range of CMC settings, including remote interviews, court testimonials, instructing, medical consultation, and socializing. The present work allows for a consideration of different forms of motoric activation, including gesturing and full-body motion, in mediated conversational settings and the derivation of a range of testable hypothesis. Motor cognition and embodiment provide an account of how speaker and listener become subject to the consequences of the muscular activation patterns that come with body movement. While movement supports internal elaboration, thus helping the speaker in formulating messages, it also has direct effects on the listener through behavioral synchrony and motor contagion. The effects of movement in CMC environments depend on two general characteristics: the level of visibility of movement and the extent to which the technology facilitates or inhibits movement. Available channels, set-up of technology, and further customization therefore determine whether movement can fulfil its internal functions (relevant to cognitive-affective elaboration of what is being said by the speaker) and its external functions (relevant to what is being perceived by and activated within the listener). Several indicators of conversational effectiveness are identified that serve as outcome variables. This MCEE model is intended to help users, developers and service provides to make CMC more engaging and more meaningful.