lines, the anticipation of reward has been shown to enhance a wide range of cognitive operations, including memory and novelty processing (e.g., Adcock et al., 2006; Krebs et al., 2009; Wittmann et al., 2005, 2008), perceptual discrimination (e.g., Engelmann and Pessoa, 2007; Engelmann et al., 2009), cognitive flexibility (e.g., Aarts et al., 2010) and conflict resolution (e.g., Padmala and Pessoa, 2011; Stürmer et al., 2011).