Department of English Education, Hongik University, Sangsu-dong, Mapo-gu, Seoul 121-791, Korea.
J Acoust Soc Am. 2013 Jul;134(1):EL19-25. doi: 10.1121/1.4807431.
Categorical perception experiments were performed on an English /b-p/ voice onset time (VOT) continuum with native (American English) and non-native (Korean) listeners to examine whether and how phonetic categorization is modulated by prosodic boundary and language experience. Results demonstrated perceptual shifting according to prosodic boundary strength: A longer VOT was required to identify a sound as /p/ after an intonational phrase than a word boundary, regardless of the listeners' language experience. This suggests that segmental perception is modulated by the listeners' computation of an abstract prosodic structure reflected in phonetic cues of phrase-final lengthening and domain-initial strengthening, which are common across languages.
采用英语 /b-p/ 语音起始时间（VOT）连续体进行了范畴感知实验，实验对象为以英语为母语（美国英语）和非母语（韩语）的听众，旨在检验语音范畴感知是否以及如何受到韵律边界和语言经验的调节。结果表明，根据韵律边界的强度，感知会发生变化：在考虑到韵律边界后，听者需要更长的 VOT 才能将声音识别为 /p/，而不仅仅是单词边界，无论其语言经验如何。这表明，语音感知受到了听者对反映在韵律边界后延和起始域强化等语音线索的抽象韵律结构的计算的调节，而这些线索在不同语言中是共通的。
