“…Corrugator and zygomatic EMG reflect emotional facial actions of brow lowering and lip corner pulling, respectively (Dimberg, 1990). In previous studies, subjective valence ratings showed linear negative and positive associations with cEMG and zEMG activity, respectively (Greenwald et al, 1989;Lang et al, 1993;Bradley and Lang, 2000;Larsen et al, 2003;Tan et al, 2012;Sato et al, 2013Sato et al, , 2020Sato and Kochiyama, 2022). SCR reflects eccrine sweat gland activity, which is controlled by the sympathetic branch of the autonomic nervous system (Boucsein, 2011).…”