Although images of faces have long been employed in the scientific study of emotion, the objectives and assumptions motivating their use have shifted according to the various fields and research programs within which they have been put to use. This article traces these shifts through three such fields – the social psychology of interwar America, cross-cultural research of the 1970s, and the contemporary neurosciences of emotion – in order to assess the recent use of facial images as a means of (...) correlating particular emotions with particular locations in the brain. (shrink)