适应性难度与多领域认知训练中的认知获益：一项随机对照研究

Cognitive training is widely delivered in gamified formats, but it remains unclear whether adaptive adjustment of task difficulty contributes to cognitive gains beyond participation in the same training at a fixed level of difficulty. We investigated this question using Pavlov: The Brain Is On, a functional cognitive-training game. In Experiment 1, 107 young adults were randomly assigned to 19 days of adaptive-difficulty training (ADT) or the same training maintained at low difficulty (LDT), with the same games and the same prescribed daily training time. Cognitive performance was assessed bef