Context Effect in the Categorical Perception of Mandarin Tones
Context Effect in the Categorical Perception of Mandarin Tones
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普通话声调分类感知中的语境效应
DOI：
10.1007/s11265-015-1008-2
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发表时间：
2016-02-01
影响因子：
1.8
通讯作者：
Peng, Gang
中科院分区：
文献类型：
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作者：
Chen, Fei;Peng, Gang
声调的范畴感知不仅依赖于词内F0线索，还依赖于语境中的外部F0线索。本研究旨在探讨不同类型的前置语境对普通话声调知觉的影响。在实验中，受试者被要求识别目标音调与前面的上下文。目标声调来自从普通话声调1（高声调）到声调2（中升调）的连续调。它之前的四种类型的上下文（正常语音，反转语音，精细结构的声音，和非语音）具有不同的平均F0值。研究结果表明，普通话声调的范畴知觉只受正常语境的影响，并且这种影响是对比性的。例如，在具有较高平均F0的正常语音上下文中，后续音调更可能被感知为较低频率音调（音调2），而具有较低平均F0的后续音调更可能被感知为较高频率音调（音调1）。这些研究结果表明，普通话声调正常化是由特定的语音过程介导的，语音上下文需要可理解。
The categorical perception of tones is based not only on word-internal F0 cues but also on external F0 cues in the contexts. The present study focuses on the effects of different types of preceding contexts on Mandarin tone perception. In the experiment, subjects were required to identify a target tone with the preceding context. The target tone was from a tone continuum ranging from Mandarin Tone 1 (high-level tone) to Tone 2 (mid-rising tone). It was preceded by four types of contexts (normal speech, reversal speech, fine-structure sound, and non-speech) with different mean F0 values. Results indicate that the categorical perception of Mandarin tones is influenced only by the normal speech context, and the effect is contrastive. For instance, in a normal speech context with a higher mean F0, the following tone is more likely to be perceived as a lower frequency tone (Tone 2), whereas with a lower mean F0, the following tone is more likely to be perceived as a higher frequency tone (Tone 1). These findings suggest that Mandarin tone normalization is mediated by speech-specific processes and that the speech context needs to be intelligible.