INFLUENCE OF PRECEDING FRICATIVE ON STOP CONSONANT PERCEPTION
INFLUENCE OF PRECEDING FRICATIVE ON STOP CONSONANT PERCEPTION
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DOI：
10.1121/1.385483
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发表时间：
1981-01-01
影响因子：
2.4
通讯作者：
REPP, BH
中科院分区：
文献类型：
--
作者：
MANN, VA;REPP, BH
在人类中，研究了前置摩擦音对感知辅音发音位置的影响。来自2[Tv]-[Kv]连续音节的合成音节先于适合于[.int.]的摩擦噪声或者[S]，并表明在[S]的背景下可以感觉到更多的薄膜停顿。实验(EXP)1表明，随着摩擦噪声和声母-元音部分在时间上的分离增加，以及在噪声之前引入元音，从而允许在摩擦之后有主观音节边界，这种知觉语境效应的大小有所降低。实验2表明，虽然摩擦对停止知觉的影响最初随着时间分离而减弱，但在长达375ms的时间间隔内，摩擦对停止感知的影响可能以简化的形式持续存在。实验3使用改进的刺激复制了基本的摩擦语境效应，但未能复制实验1中得到的中间音节边界的缩写，这可能是由于摩擦之前的元音所致。实验4和实验5揭示，摩擦语境取决于分配给摩擦的语音类别和摩擦噪声的特定频谱特性。实验5还揭示了停辅音在摩擦识别中的相互作用。人们假设，这些知觉效应有助于补偿停辅音和前置摩擦音之间的协同发音依赖。
The effect of a preceding fricative on the perceived place of stop consonant articulation was studied in humans. Synthetic syllables from 2 [tV]-[kV] continua were preceded fricative noises appropriate to [.intg.] or [s] and showed that more velar stops are perceived in the context of [s]. Experiment (exp) 1 demonstrated a decrease in the magnitude of this perceptual context effect with increased temporal separation of fricative noise and CV (consonant-vowel) portion and with introduction of a vowel before the noise, which permitted a subjective syllable boundary after the fricative. Exp 2 showed that although the effect of the fricative on stop perception declines initially with temporal separation, it may persist in reduced form over intervals as long as 375 ms. Exp 3 replicated the basic fricative context effect using improved stimuli but failed to replicate the reduction with an intervening syllable boundary obtained in exp 1, which presumably was due to the vowel preceding the fricative. Exp 4 and 5 revealed that the fricative context depends on the phonetic category assigned to the fricative and on the specific spectral properties of the fricative noise. Exp 5 also revealed a reciprocal effect of the stop consonant on fricative identification. It was hypothesized that these perceptual effects serve to compensate for coarticulatory dependencies between stop consonants and preceding fricatives.