Figure 2.

Means of recorded mouse vocalization parameters separated by an hour of rest are consistent. (A) Mean vocalization number in each recording. Blue bars indicate the first recording taken on post-natal day 5 (t). Gray bars indicate recordings taken after 1 h of rest (t + 1 h). Error bars are the standard error of the mean. (B) Number of bouts per recording. (C) Percentage of isolated vocalizations. (D) Vocalizations per bout. (E) Mean duration of vocalizations. (F) Mean duration of pauses between vocalizations. (G) Mean pause duration of inter-bout vocalization. (H) Mean pause duration of intra-bout vocalization. (I) Mean pause duration of hyper-bout vocalization. (J) Mean frequency of vocalizations. (K) Mean pitch jump of vocalization. (L) Mean log power of vocalizations. No significant differences were found.