DISCRIMINATION OF VOICE ONSET TIME BY HUMAN INFANTS - NEW FINDINGS AND IMPLICATIONS FOR THE EFFECTS OF EARLY EXPERIENCE
DISCRIMINATION OF VOICE ONSET TIME BY HUMAN INFANTS - NEW FINDINGS AND IMPLICATIONS FOR THE EFFECTS OF EARLY EXPERIENCE
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DOI：
10.1111/j.1467-8624.1981.tb03159.x
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发表时间：
1981-01-01
影响因子：
4.6
通讯作者：
PEREY, AJ
中科院分区：
文献类型：
--
作者：
ASLIN, RN;PISONI, DB;PEREY, AJ
在两个实验中考察了6-12个月婴儿对发声时间(VOT)的辨别能力。一种可操作性的头部翻转技术评估了从−70毫秒到+70毫秒的合成VOT连续体上的辨别能力。来自英语环境的婴儿为区分位于VOT连续体的正负区域的VOT对比提供了可靠的受试者内证据。这些结果提供了强有力的证据，表明来自英语环境的婴儿能够区分英语中非音素的VOT对比。阈值ΔVOT值表明，婴儿对VOT连续体正区的VOT差异比负区的VOT差异更敏感。来自讲英语的成年人的阈值ΔVOT值表明，在VOT连续体的每个位置都有更高的敏感性。此外，成年人对Vot连续体正区中的浊音-无声边界附近的Vot差异表现出高度的敏感性，这一发现在婴儿的数据中并不明显。
Discrimination of voice onset time (VOT) by 6–12-month-old infants was examined in 2 experiments. An operant head-turning technique assessed discrimination along a synthetic VOT continuum ranging from −70 msec to +70 msec. Infants from an English-speaking environment provided reliable within-subject evidence for discrimination of VOT contrasts located at both the plus and minus regions of the VOT continuum. These results provide strong evidence that infants from an English-speaking environment are capable of discriminating VOT contrasts that are not phonemic in English. Threshold ΔVOT values indicated that the infants were more sensitive to VOT differences in the plus region of the VOT continuum than in the minus region. Threshold ΔVOT values from English-speaking adults indicated greater sensitivity at every location along the VOT continuum. In addition, the adults showed heightened sensitivity to VOT differences near the voiced-voiceless boundary in the plus region of the VOT continuum, a finding that was not evident in the infants’ data.