Processing of place information in stop consonants
Processing of place information in stop consonants
复制标题
塞音辅音位置信息的处理
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
J. Sawusch
中科院分区：
文献类型：
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作者：
J. Sawusch
言语知觉模型必须回答的基本问题之一是，从刺激中提取各种线索的条件，以及介导这一过程的机制的性质。本研究通过两个选择性顺应实验探讨了音节首和音节尾位置发音位置的语音特征。在第一个实验中，CV和VC刺激的第二和第三共振峰转换完全重叠。尽管这种基本上完全重叠，没有适应效果，发现VC适配器和CV测试系列（反之亦然）。在第二个实验中，使用了各种元音，元音样，VC样适配器。VC类适配器确实对CV类别边界有显著影响，而元音和元音类刺激则没有。这些结果解释内的一个和两个层次的选择性适应模型。这些模型的区别在于是否选择性适应被认为是影响一个单一的听觉水平的处理或影响听觉水平和稍后的语音水平。然而，这两种模型都包含了听觉水平的检测器，每当出现特定的共振峰转换时都会做出响应。这些听觉检测器对音节内的辅音过渡信息的位置不敏感。
One of the basic questior, s that models of speech perception must answer concerns the conditions under which various cues will be extracted from a stimulus and the nature of the mechanisms which mediate this process. Two selective adaptation experiments were carried out to explore this question for the phonetic feature of place of articulation in both syllableinitial and syllable-final positions. In the first experiment, CV and VC stimuli were constructed with complete overlap in their second- and third-formant transitions. Despite this essentially complete overlap, no adaptation effects were found for a VC adaptor and a CV test series (or vice versa). In the second experiment, various vowel, vowel-like, and VC-like adaptors were used. The VC-like adaptors did have a significant effect on the CV category boundary, while the vowel and vowel-like stimuli did not. These results are interpreted within both one- and twolevel models of selective adaptation. These models are distinguished by whether selective adaptation is assumed to affect a single auditory level of processing or to affect both an auditory level and a later phonetic level. However, both models incorporate detectors at the auditory level which respond whenever particular formant transitions are present. These auditory detectors are not sensitive to the position of the consonant transition information within the syllable.