Training child learners on non-native vowel contrasts: the role of talker variability
Training child learners on non-native vowel contrasts: the role of talker variability
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训练儿童学习者非母语元音对比：说话者变异性的作用
DOI：
10.31234/osf.io/63dhn
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发表时间：
2020
期刊：
影响因子：
3.4
通讯作者：
E. Wonnacott
中科院分区：
文献类型：
--
作者：
G. Brekelmans;Evans Bg;E. Wonnacott
获得非母语的语音对比往往是困难的。高变异性语音训练（HVPT）是一种用于训练学习者非母语音素对比的成熟方法：在早期使用低变异性（LV）输入的研究被证明是不成功的之后，它关键地使用高变异性（HV）输入。HVPT已成功应用于许多不同的研究与成人参与者，但少得多，所以与儿童。目前的研究进一步调查输入变异性对儿童语音训练的影响，检查他们是否像以前的成年人一样表现出HV益处。在为期两周的训练研究中，58名荷兰7岁儿童和51名荷兰11岁儿童接受了使用HV（多个谈话者）或LV（单个谈话者）输入的标准英国南部英语元音对比的训练。两组都在训练中有所改善，然而，与年轻学习者可塑性益处的想法相反，只有11岁的孩子表现出泛化的证据，即对不熟悉的谈话者的前/后测试的改善，贝叶斯因子显示7岁的孩子没有证据。关键的是，没有证据表明11岁的孩子在HV输入后表现出更大的泛化能力，在一些测试中没有证据。结果进行了讨论的训练和测试任务的困难和可能的相互作用与输入可变性的好处。
Acquiring a non-native speech contrast is often difficult. High variability phonetic training (HVPT) is a well-established method used to train learners on non-native phoneme contrasts: it critically uses high variability (HV) input after earlier studies using low variability (LV) input had proved unsuccessful. HVPT has since been successfully applied in many different studies with adult participants, but much less so with children. The current study further investigates the effect of input variability on phonetic training for children, examining whether, like adults previously, they show a HV benefit. In a two-week training study, 58 Dutch 7-year-olds and 51 Dutch 11-year-olds were trained on Standard Southern British English vowel contrasts using either HV (multiple talkers) or LV (single talker) input. Both groups improved in training, however, contrary to the idea of a plasticity benefit for younger learners, only the 11-year-olds showed evidence of generalization i.e. improvement on pre/post-tests with unfamiliar talkers, with Bayes Factors showing null evidence for 7-year-olds. Critically, there was no evidence that 11-year-olds showed greater generalization following HV input, with evidence for the null in some tests. Results are discussed in terms of difficulties of the training and testing tasks and possible interactions with the benefits of input variability.