“…To illustrate, appetitive and aversive processing operate within the same brain regions and involve similar neurotransmitter systems (Hayes, Duncan, Xu, & Northoff, 2014;Hu, 2016;Pessiglione & Delgado, 2015). Other research also highlights the prevalence of affective, attitudinal, and motivational ambivalence (Larsen, Hershfield, Stastny, & Hester, 2017;Mikulincer, Shaver, Bar-On, & Ein-Dor, 2010;Rothman, Pratt, Rees, & Vogus, 2016). In research on goals, in particular, substantial positive correlations between approach and avoidance variants are observed (Gable, 2006;Mouratidis & Sideridis, 2009;Ryan & Shim, 2008).…”