“…Similarly, we used sad film clips as stimuli, and the mean amplitude of galvanic skin response (GSR) and heart rate (HR) were used as physiological arousal indices in the current study. GSR and HR were sensitive to sadness arousal (Kreibig et al, 2007;Kreibig, 2010;Troy et al, 2010;Wu et al, 2014), and they could be regulated by reappraisal, according to previous studies (Giuliani et al, 2008;Yuan et al, 2011).…”