“…PTSD is largely defined by uncontrollable intrusive mental images, and one of the primary frontline treatments also involves employing mental imagery in forms of CBT (Foa & Meadows, 1997;Harvey, Bryant, & Tarrier, 2003). Further, individual differences in imagery vividness have been shown to predict the amount of intrusive images following exposure to aversive stimuli (Morina, Leibold, & Ehring, 2013), and voluntary mental images can undergo associative learning (Lewis, O'Reilly, Khuu, & Pearson, 2013), a likely mechanism of PTSD (Rauch, Shin, & Phelps, 2006).…”