Abstractness of human speech sound representations
Abstractness of human speech sound representations
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DOI：
10.1016/j.brainres.2020.146664
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发表时间：
2020-04-01
期刊：
影响因子：
2.9
通讯作者：
Sakai, Hiromu
中科院分区：
文献类型：
--
作者：
Hestvik, Arild;Shinohara, Yasuaki;Sakai, Hiromu
我们认为，基于对日语语音差异的大脑反应的研究，功能语音音素的记忆编码是高度抽象的。作为一个例子，我们提供的证据的理论，辅音/p t k B d g/不仅是由符号特征，但未被指定的发声或喉功能，语言不同的特征值是未被指定。在以前的研究中，我们表明，在英语中，浊塞音是不明确的[Hestvik，A.，& Durvasula，K.（2016年）。英语清音不规范的神经生物学证据。大脑和语言]，如对/t/和/d/的不匹配负性反应的不对称性所示。在目前的研究中，我们测试的预测，相反的不对称性，应在日本，如果在该语言中的无休止的停止是指定不足。我们的结果证实了这一预测。这与语言学架构相匹配，其中音素是高度抽象的，并且不编码对应语音的实际物理特征，而是抽象区别特征的不同子集。
We argue, based on a study of brain responses to speech sound differences in Japanese, that memory encoding of functional speech sounds-phonemes-are highly abstract. As an example, we provide evidence for a theory where the consonants/p t k b d g/ are not only made up of symbolic features but are underspecified with respect to voicing or laryngeal features, and that languages differ with respect to which feature value is underspecified. In a previous study we showed that voiced stops are underspecified in English [Hestvik, A., & Durvasula, K. (2016). Neurobiological evidence for voicing underspecification in English. Brain and Language], as shown by asymmetries in Mismatch Negativity responses to /t/ and /d/. In the current study, we test the prediction that the opposite asymmetry should be observed in Japanese, if voiceless stops are underspecified in that language. Our results confirm this prediction. This matches a linguistic architecture where phonemes are highly abstract and do not encode actual physical characteristics of the corresponding speech sounds, but rather different subsets of abstract distinctive features.