Series rhythmic structure is consistent across mice.

(a) Example bouts produced by an adult mouse. Bouts are stacked according to duration, with the shortest on top and the start of the bouts on the left. Red lines indicate short USVs, blue lines indicate long USVs, green lines indicate IGIs, and white spaces indicate IVIs, with the length of the lines and spaces representing to scale the duration of the USVs and ISIs. Mean (b) raw conditional probabilities and (c) normalized Preference Scores for each transition across all 19 mice. The numbers adjacent to the bars indicating the transition represent the mean across mice with the standard deviation in parentheses. Additional statistical details are presented in S11 and S12 Tables for (b) and (c), respectively. (d) Average Preference Scores for each transition in all 19 adult mice, depicting the values for individual mice. (e) Proportion of isolate USVs observed to be short USVs. In (d) and (e), error bars indicate the mean across animals +/-1 standard deviation, and values for individual mice are represented by the 19 overlaid points. In (b-c), IGIs are represented by the green circles while IBIs are indicated by the grey circles. In (d), “b”, “g”, “S”, and “L” correspond to IBIs, IGIs, short USVs, and long USVs, respectively.