“…For example, researchers are beginning to examine additional biological factors associated with hypnosis such as changes in peripheral hormone levels (Bryant, Hung, Guastella, & Mitchell, 2012; Varga & Kekecs, 2014), heart rate and heart rate variability (Santarcangelo et al, 2012; Santarcangelo, Varanini et al, 2013; Sebastiani, Simoni, Gemignani, Ghelarducci, & Santarcangelo, 2003; Yuksel, Ozcan, & Dane, 2013), respiratory rate (Sebastiani et al, 2003), and blood pressure (Santarcangelo, Paoletti et al, 2013). Doubtless some of these factors as well as other biological, psychological, and social factors not examined here will be identified as being associated with, and may ultimately be shown to influence, hypnotic responding.…”