The MDA framework describes various aspects of the game regarding the basic rules and actions (Mechanics), how they build up during game to develop the gameplay (Dynamics), and what emotional response they convey to the player (Aesthetics). The described aesthetics are further classified as Sensation, Fantasy, Narrative, Challenge, Fellowship, Discovery, Expression and Submission. Jesse Schell extends this classification with Anticipation, Schadenfreude, Gift giving, Humour, Possibility, Pride, Purification, Surprise, Thrill, Perseverance and Wonder, and proposes a number of generalizations of differences between how males and females play.[35]