Automated Analysis of Facial Cues from Videos as a Potential Method for Differentiating Stress and Boredom of Players in Games

Table 2

Mean of differences (SD) of features between periods and (). Units expressed in normalized pixels.

Feature (notation)
Mouth outer ()	−20.59 57.36
Mouth corner ()	−3.90 10.16
Eye area ()	−0.019 0.064
Eyebrow activity ()	−15.59 49.71
Face area ()	−2.60 7.90
Face motion ()	−44.97 326.74
Facial COM ()	−0.029 0.113

; .