There is a hidden question at the heart of media studies, so fundamental that it has largely remained implicit and unexamined. Where do you end, and where do media begin? In 'Media in Mind,' author Daniel Reynolds draws upon naturalist philosophies of the mind from John Dewey through contemporary theories of embodied and extended cognition to make the case that the lines separating media from the minds of their users are not blurry or variable so much as they never existed to begin with. Through analyses of films and video games from 1900 to the present, 'Media in Mind' shows how media forms and technologies challenge dominant models of perception and mental representation, and how they complicate theoretical understanding of concepts like the platform and the interface