“…Thus, it is possible that checking compulsions in OCD patients stem from deficits in other functional domains, such as lack of memory confidence leading to patients mistrusting memories that they know are accurate (MacDonald et al, 1997; Tolin et al, 2001; van den Hout & Kindt, 2003). Interestingly, several studies have suggested that repeated checking directly decreases memory confidence, even in healthy controls, which may give hints about the origin of compulsive checking (Giele et al, 2013; Harkin & Kessler, 2009; Harkin & Kessler, 2011; Harkin, Rutherford, & Kessler, 2011; van den Hout & Kindt, 2004). Other factors that may contribute to the evolution of checking compulsions include feelings of incompletion, doubt, and uncertainty (Jacoby, Fabricant, Leonard, Riemann, & Abramowitz, 2013; Tolin, Abramowitz, Brigidi, & Foa, 2003); increased salience of imagined feared outcomes (Psychometri, 2005; Salkovskis, 1985); and/or overestimation of the likelihood of occurrence of feared events (Cisler & Koster, 2010; Jones & Menzies, 1997; Jones & Menzies, 1998; Moritz & Jelinek, 2009).…”