“…Affect is a central feature in many psychological phenomena, including emotion (Barrett, 2006a,b; Diener, 1999; Russell, 2003), attitudes (e.g., Cacioppo & Berntson, 1994; Eagly & Chaiken, 1998; Ito & Cacioppo, 2001), stereotyping and prejudice (e.g., Cacioppo & Berntson, 2001; Forgas & Fiedler, 1996; Mackie & Hamilton, 1993; Moreno & Bodenhausen, 2001), verbal communication and negotiation strategies (e.g., Forgas, 1998, 1999a,b), judgment and decision-making (e.g., Forgas, 1995; Haidt, 2002; Slovic et al, 2002), predicting the future (e.g., Gilbert & Ebert, 2002; Gilbert et al, 1998), work motivation (e.g., Seo et al, 2004), psychopathology (e.g., Davidson, 2000; Davidson et al, 2002), well-being, (e.g., Davidson, 2004), health (Gallo et al, 2005), and personality (e.g., Revelle, 1995; Watson, 2000; Yik et al, 2002). Core affect provides a common metric (or what neuroeconomists call a “common currency”) for comparing qualitatively different events (Cabanac, 2002), and can serve as the basis for moral judgments of right and wrong (Greene et al, 2001; Haidt, 2001).…”