Influence of phonotactic probability/neighbourhood density on lexical learning in late talkers.
Influence of phonotactic probability/neighbourhood density on lexical learning in late talkers.
复制标题
音位概率/邻域密度对说话晚者词汇学习的影响。
DOI：
10.1111/j.1460-6984.2012.00198.x
复制
发表时间：
2013
影响因子：
2.4
通讯作者：
Marton,Klara
中科院分区：
文献类型：
--
作者：
MacRoy-Higgins,Michelle;Schwartz,RichardG;Shafer,ValerieL;Marton,Klara
研究背景晚说话的幼儿在语音和词汇技能方面表现出延迟。然而，语音因素对晚说话幼儿词汇习得的影响尚未得到直接的检验。AimsTo检验语音定位概率/邻域密度对晚说话幼儿使用理解进行词汇学习的影响，方法和程序2岁的奥尔兹谁是晚说话者（n= 12）和典型的发展幼儿（n= 12）在10次训练中，他们接触了12个用于不熟悉物体的新伪词。伪词包含高或低的英语语音序列。幼儿的理解，语音生产和检测的发音错误的新学到的单词进行了检查使用preferential looking paradigm.Outcomes & ResultsLate talks表现出较差的性能比幼儿与典型的语言发展在所有三个任务：理解，生产和检测的发音错误。典型的语言发展的幼儿表现出更好的语音生产和更敏感的发音错误的高比低的语音概率/邻里密度序列。语音定位概率/邻域密度并没有影响后期说话者的语音生产或敏感性发音错误，他们表现出类似的伪词与高和低的语音定位概率/邻域密度soundsequence.Conclusions & ImplicationsThe结果表明，一些后期说话者不认识他们的语言的统计特性，这可能有助于他们较慢的词汇学习。
BackgroundToddlers who are late talkers demonstrate delays in phonological and lexical skills. However, the influence of phonological factors on lexical acquisition in toddlers who are late talkers has not been examined directly.AimsTo examine the influence of phonotactic probability/neighbourhood density on word learning in toddlers who were late talkers using comprehension, production and word recognition tasks.Methods & ProceduresTwo‐year‐olds who were late talkers (n= 12) and typically developing toddlers (n= 12) were exposed to 12 novel pseudo‐words for unfamiliar objects in ten training sessions. Pseudo‐words contained high or low phonotactic probability English sound sequences. The toddlers’ comprehension, speech production and detection of mispronunciation of the newly learned words were examined using a preferential looking paradigm.Outcomes & ResultsLate talkers showed poorer performance than toddlers with typical language development in all three tasks: comprehension, production and detection of mispronunciations. The toddlers with typical language development showed better speech production and more sensitivity to mispronunciations for high than low phonotactic probability/neighbourhood density sequences. Phonotactic probability/neighbourhood density did not influence the late talkers’ speech production or sensitivity to mispronunciations; they performed similarly for pseudo‐words with high and low phonotactic probability/neighbourhood density sound sequences.Conclusions & ImplicationsThe results indicate that some late talkers do not recognize statistical properties of their language, which may contribute to their slower lexical learning.