层级动态模型解释学习、遗忘与再学习

The model developed here provides a quantitative account of a range of well-known findings on learning, forgetting, and relearning, spanning delays from seconds (e.g., Peterson & Peterson, 1959) to weeks (e.g., Ebbinghaus, 1885/1964; Perkins, 1914). The model tracks the probability of recall of individual items as they are learned, forgotten, and relearned over time. During study, recall probability increases, whereas during retention intervals it declines exponentially. Crucially, the rate of this decline is not fixed but is governed by a forgetting exponent that itself changes across study a