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首页> 外文期刊>Neuroscience Letters: An International Multidisciplinary Journal Devoted to the Rapid Publication of Basic Research in the Brain Sciences >Magnetic mismatch fields elicited by vowel duration and pitch changes in Japanese words in humans: comparison between native- and non-speakers of Japanese.
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Magnetic mismatch fields elicited by vowel duration and pitch changes in Japanese words in humans: comparison between native- and non-speakers of Japanese.

机译：人类中日语单词的元音持续时间和音高变化引起的磁失配场：日语母语者和非日语者之间的比较。

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Previous event-related brain potential research showed that mismatch negativity was elicited by phoneme contrasts in fluent second language (L2) learners, but not in non-speakers of L2. The present study tested whether the magnetic mismatch field (MMF) would be elicited in response to temporal and spectral changes in three Japanese synthesized words for both native- and non-speakers of Japanese. Magnetoencephalography responses were recorded with a dual 37-channel gradiometer. Unlike short-to-long vowel duration and falling-to-level pitch changes, long-to-short duration and level-to-falling pitch changes elicited a prominent MMF bilaterally for both groups, peaking at around 100 ms after change onset for duration and 200 ms for pitch. The MMF component is sensitive to vowel shortening rather than lengthening and to pitch falling rather than leveling. Automatic detection of changes in vowel shortening and pitch falling is a useful index of language-non-specific auditory memory traces.
机译：先前与事件相关的大脑潜能研究表明，流利的第二语言（L2）学习者的音素对比会引起失配否定，而不是第二语言的非母语学习者。本研究测试了日语的母语和非日语的三个日语合成词中的时间和频谱变化是否会引起磁失配场（MMF）。用双37通道梯度仪记录脑磁图反应。与短至长元音持续时间和落到水平的音调变化不同，长至短持续时间和水平到下降的音调变化在两组中都引起了双边显着的MMF，在持续时间变化开始后约100 ms达到峰值音调为200毫秒。 MMF组件对元音缩短而不是加长，音高下降而不是调平敏感。自动检测元音缩短和音高下降的变化是非语言特定听觉记忆轨迹的有用索引。

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