The AffectButton: a Digital Self-report Tool for Emotion

The AffectButton is a self-report tool that enables users to report upon their emotion, mood or attitude about things. It is a simple interactive button that presents a dynamically changing facial expression. The expression generated by the AffectButton changes based on mouse movement insight the button and the user selects the expression that best matches his or her feeling. In doing so, the user in fact enters three values on the well-known affective dimensions Pleasure (Valence), Arousal and Dominance. The resulting values and the usability of the AffectButton have been extensively evaluated. Here we give a short summary of the motivation, findings and recent developments.