Left: CA3 activity patterns represent events. A, Similarity values (Pearson’s r) within event (orange) and across events (gray) in CA3. Rep5, fifth repetition; Rep1, first repetition. B, Individual participants’ values of the difference between within event and across events similarity. C, The same data as in A but presented per each level of temporal distance. As can be seen, similarity did not differ based on temporal distance in CA3. D, Same as C but using normalized dot product values. N = 30. Data are presented as mean values, and the error bars reflect ±SEM. *p = 0.02, reflecting higher similarity within compared to across events, collapsed across gaps (statistical analysis was conducted by entering similarity values of individual pairs to linear mixed-effects models and conducting model comparisons using chi-square tests; see main text).