“…The Easy with Eve initially recognized seven emotions (surprise, happiness, sadness, puzzlement, disgust, anger, and neutral; Sarrafzadeh, Alexander, Dadgostar, Fan, & Bigdeli, 2006; Sarrafzadeh et al., 2004) but eventually presented to recognize eight emotional states (neutral, smiling, laughing, surprised, angry, fearful, sad, and disgusted; Sarrafzadeh et al., 2014). A web camera (S. Alexander, 2005; S. T. V. Alexander, 2004; Sarrafzadeh et al., 2004, 2006) and a system consisting of (a) an artificial neural network for face detection, (b) the extraction of facial features, and (c) the fuzzy face expression classifier to detect student’s emotional state (Sarrafzadeh et al., 2006).…”