“…It has been found to be a good predictor of altered states produced by psychedelic substances (Haijen et al, 2018 ) such as psilocybin (Studerus et al, 2012 ; Studerus, 2013 ), LSD (Carhart-Harris et al, 2015 ; Terhune et al, 2016 ), MDMA (Hastings, 2006 ), ayahuasca (Bresnick and Levin, 2006 ), and ayahuasca's active ingredient, DMT (Timmermann et al, 2018 ). It is also a good predictor of mystical and quasi-mystical experiences produced endogenously in contexts such as the anechoic dark room (Luke et al, 2018 ), the whole-body perceptual deprivation tank (WBPD; Glicksohn and Ben-Soussan, 2020 ), and during guided “shamanic journey” visualisation (Rock, 2009 ). Traditionally, the trait has been associated with “fantasy proneness,” hypnotisability, imagery ability, openness to experiences (McCrae and Costa, 1983 ; Pekala et al, 1985 ; Roche and McConkey, 1990 ; Glisky et al, 1991 ), alterations in body image, time-space perception, and meaning (Pekala et al, 1985 ; Kumar and Pekala, 1988 ), higher emotional sensitivity and emotional brain processing (McCrae and Costa, 1983 ; Benning et al, 2015 ), stronger empathy (Wickramasekera and Szlyk, 2003 ; Wickramasekera, 2007 ), stronger flow states (Marty-Dugas and Smilek, 2019 ), intellectual curiosity (McCrae and Costa, 1983 ), more pronounced creativity and engagement in the arts (Wild et al, 1995 ; Manmiller et al, 2005 ), positive emotional responses to music (Rhodes et al, 1988 ), more pronounced experiences of synaesthesia (Rader and Tellegen, 1987 ; Glicksohn et al, 1999 ; Chun and Hupé, 2016 ), and an attachment to nature and other forms of life (Kaplan, 1995 ; Brown and Katcher, 1997 ), relative to the general population.…”