https://phys.org/news/2018-07-gamers-personalized-game.html

"By better understanding what people like when playing games, we can determine how best to apply those elements to situations that are not games," Tondello said. "We can create systems that are more pleasant to use and help people feel more engaged and motivated to achieve their goals."

The research began by analyzing a dataset of over 50,000 respondents who had been surveyed for an earlier player satisfaction model called BrainHex, developed by Chris Bateman with Nacke and colleague Regan Mandryk.