FIGURE 2.

Example of the automatic facial coding analysis of the Facereader software (Noldus Information Technology). (Left) Depicted is a happy facial expression from the ADFES inventory (model F01; Van Der Schalk et al., 2011). The net represents the digital face model which establishes distance measures between distinct facial features. Based on this information, activity of specific action units is estimated. (Right) In a next step, the current profile of action unit activities is integrated to higher order emotion measures (in this case the basic emotion happiness, pleasant valence, and relatively high arousal).