Schneider B A, Trehub S E, Morrongiello B A, Thorpe L A
J Acoust Soc Am. 1986 Feb;79(2):447-52. doi: 10.1121/1.393532.
Thresholds for octave-band noises with center frequencies of 0.4, 1, 2, 4, and 10 kHz, and 1/3-octave-band noises with center frequencies of 10 and 20 kHz, were obtained from children 3-5 years of age and from a comparison group of adults. Thresholds for all frequencies decreased between 3 and 5 years of age. Thresholds decreased further between 5 years of age and adulthood, except for the 20-kHz stimulus, for which children had lower thresholds than adults. These results are discussed in terms of possible age-related changes in the mechanical properties of the ear and in the efficiency of neural coding.
从3至5岁儿童以及一组成年对照组中获得了中心频率为0.4、1、2、4和10千赫的倍频程带噪声阈值，以及中心频率为10和20千赫的1/3倍频程带噪声阈值。所有频率的阈值在3至5岁之间降低。除了20千赫的刺激外，5岁至成年期间阈值进一步降低，对于该刺激，儿童的阈值低于成年人。根据耳朵机械特性和神经编码效率可能与年龄相关的变化对这些结果进行了讨论。
