“…Further, where task difficulty is either unknown (Richter & Gendolla, 2009) or user-defined (Wright, Killebrew, & Pimpalapure, 2002) mirroring the adaptive coping situation in sequential decisions sympathetic states uniquely track reward relevance, suggesting they may be involved with learning the opportunity cost of an environment. Such a link would be supported by recent perceived duration studies reporting a specific association between sympathetic activation and the overestimation of the duration of a painful stimulus (electro-cutaneous stimulation; Piovesan, Mirams, Poole, Moore, & Ogden, 2018). In addition, the association between sympathetic activation and duration overestimation appears to be specific to adaptive events of negative valence, for example, reporting the duration of the presentation of a high-arousal, negative-valence image (a mutilated body) versus a neutral or positive image (Ogden, Henderson, McGlone, & Richter, 2019;van Hedger, Necka, Barakzai, & Norman, 2017).…”