The Impact of Game Dynamic Difficulty Adjustment on Feeling of Flow
Impact de l'ajustement dynamique de la difficulté du jeu sur le sentiment de flow
Résumé
Dynamic difficulty adjustment (DDA) is a key mechanism for maintaining player engagement in video games. This study compares two types of DDA: one based on player performance, and the other on pupil size, a physiological indicator reflecting arousal and cognitive load. Forty-four participants played two sessions of Tetris using these two adjustment methods. Flow experience was measured using a standardized scale and an innovative temporal graphtracing method. Although no significant difference was observed on average in flow scores, exploratory results show that pupil-based adjustment leads to more frequent changes in game difficulty and a generally higher effective level of challenge, without degrading performance or the players' flow experience. These results highlight the potential of difficulty adjustments based on the player's physiological state and open up new perspectives for affective game design.
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