Mean durations of individual call types in different categories between control and REMSR groups on various developmental days.

The values are presented in msec and are tabulated as median (minimum, maximum) in bracket. NF stands for calls that were ‘not found’. A denotes category consisting of flat calls; B having upwards (i), downwards (ii), U shaped (iii), and inverted-U shaped (iv); C is sum of 2 and 3 syllable and D contains wave (i) and complex calls (ii). The significant changes on comparison of calls between control and REMSR are depicted in ‘*’. The level of significance is p所有数值以毫秒（msec）为单位，以中位数（最小值，最大值）的格式制表并置于括号中。NF代表"未找到（not found）"的呼叫。A类别包含平直呼叫（flat calls）；B类别包含向上型（i）、向下型（ii）、U型（iii）以及倒U型（iv）呼叫；C为2音节与3音节呼叫的总和；D则包含波形呼叫（i）与复合型呼叫（ii）。对照组（control）与REMSR组之间的呼叫对比存在显著差异，以"*"标注。显著性水平为p。