Trying to learn more about how emotion affects ecommerce, I came across the book “eMotion: Estimation of User’s Emotional State by Mouse Motions” by Wolfgang Maehr. Basically, Wolfgang Maehr found that you can correlate certain types of mouse movements with emotional states. Specifically, he found that mouse acceleration, deceleration, speed and uniformity could predict arousal, disgust/delight, and anger/contendedness, all in a sample of 39 participants.
If you know of anyone who has made any implementation of something like this, please please leave a comment!
Full research paper with numbers here: eMotion: Estimation of the User’s Emotional State by Mouse Motions.