The anger superiority effect shows that an angry face is detected more efficiently than a happy face. However, it is still controversial whether attentional allocation to angry faces is a bottom-up process or not. We investigated whether the anger superiority effect is influenced by top-down control, especially working memory (WM). Participants remembered a color then searched for differently colored facial expressions. Just holding the color information in WM did not modulate the anger superiority effect. However, when increasing the probabilities of trials in which the color of a target face matched the color held in WM, participants were inclined to direct attention to the target face regardless of the facial expression. Moreover, the knowledge of high probability of valid trials eliminated the anger superiority effect. These results suggest that the anger superiority effect is modulated by top-down effects of WM, the probability of events and expectancy about these probabilities.Keywords: working memory, visual search, facial expressions, emotion, attention
The Influence of Working Memory on the Anger Superiority EffectAnger is one of the inherent human emotions. Anger expression is already observed in infancy (Braungart-Rieker, Hill-Soderlund, & Karrass, 2010;Pemberton Roben et al., 2012), and the structure of anger is universal across cultures (Alonso-Arbiol et al., 2011). Because people express anger under interpersonal provocations or conflicts, rapid recognition of angry faces is important to restore relationships with others or to be motivated to avoid dangerous situations. Many previous studies have shown automatic attentional allocation to angry faces (Eastwood, Smilek, & Merikle, 2001;Fox et al., 2000;Frischen, Eastwood, & Smilek, 2008;Hansen & Hansen, 1988;Horstmann & Bauland, 2006;Öhman, Lundqvist, & Esteves, 2001;Pinkham, Griffin, Baron, Sasson, & Gur, 2010;Williams, Moss, Bradshaw, & Mattingley, 2005). In these studies visual search paradigms are used in which several facial expressions are presented and participants are required to determine whether all presented facial expressions are from the same category (e.g., angry) or not. Reaction times (RTs) to detect an angry target, which is surrounded by happy faces, are shorter than those for a happy target in a crowd of angry distractor faces (Horstmann & Bauland, 2006;Pinkham et al., 2010). This rapid detection of an angry face is called the anger superiority effect. Although some previous studies suggest that the anger superiority effect does not depend on the number of distractors (Öhman et al., 2001), it is still controversial whether attentional allocation to angry faces is a bottom-up and automatic attentional process or not (Frischen et al., 2008).In recent studies, top-down effects on emotional processing have been demonstrated, suggesting that the anger superiority effect is not a purely bottom-up and automatic process. (Mohanty & Sussman, 2013;Todd, Cunningham, Anderson, & Thompson, 2012). Previous studies have shown that angry ...