Emotions and Gamification
You may have noticed in my newest design framework that I mention emotions for the first time (I think) as a full consideration in my design process. I am by no means the first to think about it in a design framework. If you look at the MDA framework 1 the authors describe the aesthetics as:
the desirable emotional responses evoked in the player, when she interacts with the game system.
Later a more gamification focused framework, the MDE framework 2, dropped aesthetics and replaced them directly with emotions.