Bring it on: Angry facial expressions potentiate approach-motivated motor behavior.

Although many psychological models suggest that human beings are invariably motivated to avoid negative stimuli, more recent theories suggest that people are frequently motivated to approach angering social challenges in order to confront and overcome them. To examine these models, the current investigation sought to determine whether angry facial expressions potentiate approach-motivated motor behaviors. Across 3 studies, individuals were faster to initiate approach movements toward angry facial expressions than to initiate avoidance movements away from such facial expressions. This approach advantage differed significantly from participants' responses to both emotionally neutral (Studies 1 & 3) and fearful (Study 2) facial expressions. Furthermore, this pattern was most apparent when physical approach appeared to be effective in overcoming the social challenge posed by angry facial expressions (Study 3). The results are discussed in terms of the processes underlying anger-related approach motivation and the conditions under which they are likely to arise.