Spectral pattern discrimination by children.
Spectral pattern discrimination by children.
复制标题
儿童的光谱模式辨别。
DOI：
10.1044/jshr.3501.222
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Wightman,F
中科院分区：
文献类型：
--
作者：
Allen,P;Wightman,F
这项研究测量了47名4-9岁的儿童使用频谱形状线索区分随机强度声音的能力。孩子们接受了嵌入到视频游戏格式中的强制选择范式的测试。研究了两类声音：具有正弦波纹幅度谱的声调复合体和合成语音(孤立的元音和辅音)。分别在安静和宽带噪声背景下测量了声音的辨别能力。尽管受试者之间的表现差异很大，特别是在最小的孩子中，但结果显示了很大的年龄效应。在这两类声音中，年龄较小的儿童的表现都明显低于成年控制组。然而，数据中没有证据表明，噪音对儿童的掩盖效果比对成年人更大。
This research measured the ability of 47 children, aged 4– 9 years, to use spectral shape cues to discriminate among random-intensity sounds. The children were tested in forced-choice paradigms that were embedded in a video game format. Two classes of sounds were studied: tonal complexes with sinusoidally rippled amplitude spectra, and synthetic speech sounds (isolated vowels and consonants). The discriminability of the sounds was measured both in quiet and in a background of wide-band noise. Although the intersubject variability in performance was high, especially among the youngest children, the results revealed a substantial age effect. For both classes of sounds, the performance of the younger children was significantly poorer than the performance of an adult control group. However, there was no evidence in the data that the masking effect of the noise was greater for the children than for the adults.