Combiths Philip N, Barlow Jessica A, Potapova Irina, Pruitt-Lord Sonja
San Diego State University, CA.
University of California, San Diego.
J Speech Lang Hear Res. 2017 Aug 16;60(8):2199-2216. doi: 10.1044/2017_JSLHR-L-16-0402.
The emergence of tense-morpheme marking during language acquisition is highly variable, which confounds the use of tense marking as a diagnostic indicator of language impairment in linguistically diverse populations. In this study, we seek to better understand tense-marking patterns in young bilingual children by comparing phonological influences on marking of 2 word-final tense morphemes.
In spontaneous connected speech samples from 10 Spanish-English dual language learners aged 56-66 months (M = 61.7, SD = 3.4), we examined marking rates of past tense -ed and third person singular -s morphemes in different environments, using multiple measures of phonological context.
Both morphemes were found to exhibit notably contrastive marking patterns in some contexts. Each was most sensitive to a different combination of phonological influences in the verb stem and the following word.
These findings extend existing evidence from monolingual speakers for the influence of word-final phonological context on morpheme production to a bilingual population. Further, novel findings not yet attested in previous research support an expanded consideration of phonological context in clinical decision making and future research related to word-final morphology.
语言习得过程中时态语素标记的出现具有高度变异性，这使得在语言多样化人群中使用时态标记作为语言障碍的诊断指标变得复杂。在本研究中，我们试图通过比较语音对两个词尾时态语素标记的影响，更好地理解双语幼儿的时态标记模式。
在10名年龄在56 - 66个月（平均年龄 = 61.7，标准差 = 3.4）的西班牙语 - 英语双语学习者的自发连贯言语样本中，我们使用多种语音语境测量方法，研究了过去式 -ed 和第三人称单数 -s 语素在不同环境中的标记率。
发现这两个语素在某些语境中都表现出明显的对比标记模式。每个语素对词干和后续单词中不同的语音影响组合最为敏感。
这些发现将单语者中关于词尾语音语境对语素产生影响的现有证据扩展到了双语人群。此外，先前研究中尚未证实的新发现支持在临床决策和与词尾形态学相关的未来研究中，对语音语境进行更广泛的考虑。
