Responses to commentaries

This paper is an author response to three commentaries, by Robert Kraut and Itamar Rosenn (2012), Barry Wellman (2012) and Mark van Vugt (2012), on our article entitled 'Relationships and the social brain: Integrating psychological and evolutionary perspectives' (Sutcliffe, Dunbar, Binder, and Arrow, 2012). © 2011 The British Psychological Society.