Individual variability in cue-weighting and lexical tone learning
Individual variability in cue-weighting and lexical tone learning
复制标题
DOI：
10.1121/1.3445785
复制
发表时间：
2010-07-01
影响因子：
2.4
通讯作者：
Wong, Patrick C. M.
中科院分区：
文献类型：
--
作者：
Chandrasekaran, Bharath;Sampath, Padma D.;Wong, Patrick C. M.
语音声音模式可以使用多个声学线索来辨别。这些线索的相对权重是已知的语言特定的。成人的语音训练会引起线索权重的变化，从而强调相关的声学线索。在目前的研究中，在何种程度上个体差异的线索权重有助于差异成功学习使用外国的声音模式进行了检查。16名讲英语的成年参与者接受了一个声音到意义的训练范式，在此期间，他们学会了将普通话语言的音高轮廓到单词。除了认知测试，音高模式的歧视和识别措施收集所有参与者。反应时数据的歧视任务进行3向多维尺度提取维度的音调感知。音高高度和音高方向两个维度被发现是非母语音调空间的基础。在训练前后，好的学习者相对于差的学习者更关注音高方向。训练提高了识别和标记音高方向的能力。结果表明，在词汇语境中成功学习使用音高的能力的变化可以解释为线索权重的训练前差异。(C)2010年美国声学学会。[DOI：10.1121/1.3445785]
Speech sound patterns can be discerned using multiple acoustic cues. The relative weighting of these cues is known to be language-specific. Speech-sound training in adults induces changes in cue-weighting such that relevant acoustic cues are emphasized. In the current study, the extent to which individual variability in cue weighting contributes to differential success in learning to use foreign sound patterns was examined. Sixteen English-speaking adult participants underwent a sound-to-meaning training paradigm, during which they learned to incorporate Mandarin linguistic pitch contours into words. In addition to cognitive tests, measures of pitch pattern discrimination and identification were collected from all participants. Reaction time data from the discrimination task was subjected to 3-way multidimensional scaling to extract dimensions underlying tone perception. Two dimensions relating to pitch height and pitch direction were found to underlie non-native tone space. Good learners attended more to pitch direction relative to poor learners, before and after training. Training increased the ability to identify and label pitch direction. The results demonstrate that variability in the ability to successfully learn to use pitch in lexical contexts can be explained by pre-training differences in cue-weighting. (C) 2010 Acoustical Society of America. [DOI: 10.1121/1.3445785]