Schmitt L S, Cooper E B
J Commun Disord. 1978 Feb;11(1):17-23. doi: 10.1016/0021-9924(78)90050-3.
The fundamental frequencies of the voices during oral reading of 12 stuttering and 12 nonstuttering 7-to-12-year-old males matched according to age, height, weight, and race were studied. No statistically significant differences were found between the stutterers and nonstutterers with respect to the mean fundamental frequency, the lowest fundamental frequency, the highest fundamental frequency, and the difference between the lowest and highest fundamental frequency values.
研究了12名7至12岁口吃男性和12名非口吃男性在朗读时的嗓音基频，这些男性在年龄、身高、体重和种族方面相互匹配。在平均基频、最低基频、最高基频以及最低和最高基频值之间的差异方面，口吃者和非口吃者之间未发现统计学上的显著差异。
