Paradigm and behavior: event structure is evident in behavior. A, During list learning, participants observed lists of 24 objects on colored frames. The color frame changed every four objects, creating distinct events. Each list is repeated 5 times. B, Reaction times (RT) during list learning show higher RT for boundary items, a marker of event segmentation, persisting through the fifth repetition. C, Left: at the end of the five repetitions of each list, we tested temporal order memory, by showing a cue from the list, prompting participants to retrieve the following item from the list, and then choose the correct item. Right: RTs in the temporal memory test are presented for all trial types. N = 30. Data are presented as mean values, and the error bars reflect ±SEM. *p = 0.01, **p = 0.001, ***p < 0.0001. Statistical analysis was conducted by entering single-trial RTs into general linear mixed-effects models and conducting model comparisons using Chi-square tests.