Bond Z S, Korte S S
J Speech Hear Res. 1983 Sep;26(3):464-7. doi: 10.1044/jshr.2603.464.
The purpose of this study was to compare the voice onset time of voiced and voiceless stop consonants in children's spontaneous and imitative speech. Ten children (2:3 to 3:8) were recorded producing the same test words spontaneously and imitatively, following a model. There were no statistically significant differences between imitative and spontaneous productions.
本研究的目的是比较儿童自发言语和模仿言语中浊音和清音塞音的嗓音起始时间。10名儿童（年龄在2岁3个月至3岁8个月之间）按照一个模型，分别自发地和模仿地说出相同的测试单词，并进行了录音。模仿言语和自发言语之间没有统计学上的显著差异。
