主题：The effects ofsampling distribution on incidental learning of lexical tones by bilinguals
主讲人：严菡波 博士
评议人：高思畅 博士
时 间：2020年1月3日（周五）13:30－14:30
地 点：虹口校区2号楼501室
主办单位：上海外国语大学国际文化交流学院
内容简介
Previous research showed that compared tosingle-speaker stimuli and cue-manipulated synthesized stimuli input,multi-talker stimuli had an advantage in improving lexical tone categorizationin both corrective-feedback and incidental-learning environment. Studies of howsampling distribution influences lexical tone categorization in incidentallearning by bilinguals are limited. The current study replicated Liu et al.(2016) to examine how Portuguese-Cantonese bilinguals acquired Mandarin fourlexical tones in a video game. The stimuli in the game consisted of tone tokenswith both multi-talker stimuli (probabilistic-distribution) that wereoverlapped among tone categories and variance-manipulated stimuli(deterministic-distribution) that had no overlap among tone categories in termsof pitch height and pitch direction. Sixteen participants were exposed to thetwo sampling distributions respectively. Results showed that in contrast withthe learning outcome of native English speakers in previous study,Portuguese-Cantonese bilinguals in the variance-manipulated conditiongeneralized tone identification to new-talker stimuli better than those inmulti-talker condition did. Moreover, the bilinguals in thevariance-manipulated condition had a more nativelike cue-weighting inperception of Mandarin tones, and a higher production accuracy rate. Theresults are discussed in the dual-learning system framework (Maddox &Chandrasekaran, 2014; Roark & Holt, 2018) that the effect of samplingdistribution on lexical tone categorization may be language-specific.
主讲人简介：
严菡波，讲师，硕士生导师。本科毕业于上海大学，硕士毕业于上海大学及美国堪萨斯大学，博士毕业于美国堪萨斯大学，并在上外完成博士后的研究工作。
主要研究领域为实验音系学、心理语言学及二语语音习得。曾多次在国际学术会议上宣读研究成果，论文散见于InternationalJournal of Chinese Linguistics、Language and Speech、《语言研究集刊》等国内外学术期刊。
