i. Eye tracking. Relevant social cues must be of sufficient salience to command attention. This aspect of social cognition has been investigated by means of visual scan path paradigms that quantify the amount of time a subjects spends looking at the eyes and mouth regions of pictures of faces presented while the position of the eyes is tracked. The amount of eye gaze is predictive of a subject's ability to correctly identify emotions and meaning in others (Haxby et al. 2002). A single dose of OT significantly increases the amount of eye gaze in healthy controls (Guastella et al. 2008a) and in high functioning subjects with autism spectrum disorders (Andari et al. 2010). SCZ subjects have abnormalities in visual scan paths while viewing pictures of faces (Phillips and David 1997; Loughland et al. 2002a). Thus we hypothesize that OT will increase gaze at the eyes in subjects with deficit syndrome SCZ (Specific Aim 2a).