首页> 外文期刊>Frontiers in Psychology >When a??AAa?? is long but a??Aa?? is not short: speakers who distinguish short and long vowels in production do not necessarily encode a shorta??long contrast in their phonological lexicon
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When a??AAa?? is long but a??Aa?? is not short: speakers who distinguish short and long vowels in production do not necessarily encode a shorta??long contrast in their phonological lexicon

机译:当一个?? AAa ??很长,但是吗?不短:在生产中区分短元音和长元音的说话者不一定会在其语音词典中编码短音?长对比度

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In some languages (such as Dutch), speakers produce duration differences between vowels, but it is unclear whether they also encode short versus long speech sounds into different phonological categories. To examine whether they have abstract representations for ‘short’ versus ‘long’ contrasts, we assessed Dutch listeners’ perceptual sensitivity to duration in two vowel qualities: [a] and [ɑ], as in the words maan ‘moon’ and man ‘man,’ which are realized with long and short duration respectively. If Dutch represents this phonetic durational difference as a ‘short’–‘long’ contrast in its phonology, duration changes in [a] and [ɑ] should elicit similar neural responses [specifically, the mismatch negativity (MMN)]. However, we found that duration changes evoked larger MMN amplitude for [a] than for [ɑ]. This finding indicates that duration is phonemically relevant for the maan-vowel that is represented as ‘long,’ while it is not phonemically specified for the man-vowel. We argue that speakers who in speech production distinguish a given vowel pair on the basis of duration may not necessarily encode this durational distinction as a binary ‘short’–‘long’ contrast in their phonological lexicon.
机译:在某些语言中(例如荷兰语),说话者在元音之间会产生持续时间差异,但是尚不清楚他们是否还将短时语音和长时语音编码为不同的语音类别。为了检查他们是否具有“短”和“长”对比的抽象表示,我们评估了荷兰听众对两种元音质量的持续时间的感知敏感性:[a]和[ɑ],如maan'moon'和man'人”,分别实现了长和短的持续时间。如果荷兰语在语音学上将语音持续时间差异表示为“短”-“长”对比,则[a]和[ɑ]的持续时间变化应引起相似的神经反应[具体而言,是失配负(MMN)”。但是,我们发现,[a]的持续时间变化引起的MMN振幅大于[[]]。该发现表明持续时间与表示为“长”的马恩元音在语音上相关,而对于人文元音没有指定。我们认为,在语音产生中根据持续时间区分给定的元音对的说话者不一定会将这种持续时间区分编码为语音词典中的二进制“短”-“长”对比。

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