Acquisition of durational patterns of Japanese consonants by native speakers of South-east languages

1.外国日语学习者日语停顿的持续模式。分析了3-morae词中停止辅音的持续时间。对于法国被试来说，关闭时间+ VOT相对于单词时长的比例与日本本土被试差不多。对于美国人和中国人来说，这一比例更大，他们的作品通常被日本本土认为是Sokuon （geminate）。日语单辅音和双子音的识别。测试单词是双音节单词。西班牙语被试的单辅音和双韵母的错误率都很低。韩国被试在高低口音测试词中单个辅音的识别错误率明显较高。泰国语被试在高低重音词和高低重音词的单辅音错误率均较高。长元音和短元音的识别。测试单词是双音节单词。韩语和泰国语被试在识别长元音上的错误率普遍高于短元音。当长元音位于词尾位置且音高较低时，错误率特别高。影响长、短元音感知的声学因素。对韩国受试者和日本受试者进行感知实验，比较影响声音持续时间感知的声学因素。对纯音和元音音长的识别和辨析进行了研究。在辨别测试中，韩国和日本的受试者都表现出刺激声音的音高和强度的影响。而在长、短元音的识别上，只有朝鲜族受音高和强度的影响。这证实了日本人有一种纯粹基于持续特征的时间感知。

1.Durational pattern of Japanese stops produced by the foreign learners of Japanese.Duration of the stop consonants in the 3-morae words were analyzed. For the French subjects, ratios of the closure period + VOT relative to the word duration were dose to that by native Japanese For the Americans and Chinese, the ratios were greater and their productions were often perceived as Sokuon (geminate) by native Japanese.2.Identification of Japanese single consonants and Sokuon (geminate).The test words were the 2-syllable words. For the Spanish subjects, the error rate was low both for the single consonant and geminate. The Korean subjects showed remarkably higher error rate for the identification of single consonants in the test words of the High-Low accent. The Thai subjects showed high error rate for the single consonants both in the High-Low and Low-High accent words.3.Identification of the long and short vowels.The test words were 2-syllable words. Korean and Thai subjects generally showed higher error rate in identifying long vowels than short vowels. Error rate was especially high when the long vowels were located in the word final position and the pitch was low.4.Acoustic factors affecting the perception of the long-and short vowels.Perceptual experiments were conducted with the Korean subjects and the Japanese subjects to compare the acoustic factors affecting the perception of the sound duration. The identification and discrimination of the duration of the pure tones and the vowel sounds were examined. In the discrimination tests, both the Korean and the Japanese subjects showed the influence of the pitch and intensity of the stimulus sounds. However, in the identification of the long and short vowels, only the Korean subjects showed an influence of the pitch and intensity. It was confirmed that the Japanese has a timing perception based on the purely durational characteristics.