“…Indeed, by definition pain comprises psychological elements (IASP, 1994), thereby suggesting that, in part, analgesia depends on them. The extant literature demonstrates that psycho-pathology is both an antecedent (Gerrits, van Marwijk, van Oppen, van der Horst, & Penninx, 2015) and a consequence of persistent pain (Archer et al, 2016). Extending the scope beyond formal psychopathology, psychological factors that are known to influence pain and analgesia include cognition (Burns, Glenn, Bruehl, Harden, & Lofland, 2003; Darnall et al, 2017; Salomons, Moayedi, Erpelding, & Davis, 2014; Seminowicz & Davis, 2006; Seminowicz et al, 2013; Ziadni, Sturgeon, et al, 2018), emotion (Burns et al, 2015; McCracken & Keogh, 2009; Vlaeyen, Crombez, & Linton, 2016), appraisal (Ziadni, Sturgeon, et al, 2018), expectations (Atlas et al, 2012; Colloca & Miller, 2011b; Palermo & Drotar, 1996; Wager, Atlas, Leotti, & Rilling, 2011), attention (Kucyi, Salomons, & Davis, 2013; Seminowicz & Davis, 2006), beliefs about pain and its treatment (Carriere, Martel, Kao, Sullivan, & Darnall, 2017; Carriere et al, 2018).…”