“…Still, the advantages of automatic coding in most cases outweigh the cost, making this method increasingly popular. It has previously been used in a number of fields like emotion science ( Bartlett et al, 1999 ; Chentsova-Dutton and Tsai, 2010 ), educational research ( Terzis et al, 2012 , 2013 ; Chiu et al, 2014 ), human-computer interaction ( Cohen et al, 2003 ), consumer behavior ( Garcia-Burgos and Zamora, 2013 ; Danner et al, 2014 ; de Wijk et al, 2014 ), user experience ( Goldberg, 2014 ), clinical investigations of facial nerve grading in medicine ( Dulguerov et al, 1999 ), monitoring pain ( Lucey et al, 2012 ) and reaction to advertisement and commercial films ( Teixeira et al, 2012 ; Hetland et al, 2015 ). With video cameras for capturing facial expressions becoming increasingly better and smaller, this method can now be applied in new areas of investigation like extreme sports.…”