Differential attentional guidance by unattended faces expressing positive and negative emotion

Four experiments were conducted to evaluate whether focal attention can be guided by an analysis of the emotional expression in a face. Participants s earched displays of 7, 11, 15, and 19 schematic faces for the location of a unique face expressing either a positive or a negative emotion located amo ng distractor faces expressing a neutral emotion. The slopes of the search functions for locating the negative face were shallower than the slopes of the search functions for locating the positive face (Experiments 1A and 2A) . When the faces were inverted to reduce holistic face perception, the slop es of the search functions for locating positive and negative faces were no t different (Experiments IB and 2B). The results suggest that the emotional expression in a face can be perceived outside the focus of attention and c an guide focal attention to the location of the face.