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14.9 References > 14.9 References - Pg. 232

CHAPTER FOURTEEN · PHYSIOLOGICAL MEASURES FOR GAME EVALUATION Choosing which sensors to use should also be based on your evaluation goals. Different physiological sensors can provide indications of different user states such as arousal, valence, and mental effort. But in choosing your sensors you will also need to consider the sensor's impact on the gameplay experience, and the game's impact on the sensor. Although it can be intimidating to use physiological sensors in your work, fol- lowing the guidelines for the collection, analyzes, and use of physiological data pro- vided in this chapter will help you to achieve valid, useful, and rich data on user experience. Consider adding physiological measures to your suite of evaluation tech- niques and using them in concert with more familiar methods to achieve a robust and complete picture of user experience with games. How to Use Physiological Metrics Decide what you want to measure (for example, valence, arousal) Choose the appropriate sensors Control your task and environment Process the data according to which sensors were chosen Make inferences and iterate on game design.