The Affectiv™ suite monitors player emotional states in real-time. It provides an extra dimension in game interaction by allowing the game to respond to players' emotions. Characters can transform in response to the player's feeling - the experience of playing "The Incredible Hulk" will never be the same. The Affectiv suite can be used to monitor player state of mind and allow developers to tailor difficulty to suit each situation.
By combining the detections of the Expressiv & Affectiv suite together, you can have a very good idea of many emotions that people are experiencing, in real time.