School of Occupational Therapy, Social Work, and Speech Pathology, Curtin University, Perth, Western Australia.
Moor House Research and Training Institute, Moor House School & College, Oxted, UK.
Clin Linguist Phon. 2022 May 4;36(4-5):341-358. doi: 10.1080/02699206.2021.1931454. Epub 2021 Jun 2.
Previous research has established that children with developmental language disorder (DLD) have difficulties producing inflectional morphology, in particular, finiteness marking. However, other categories of inflectional morphology, such as possessive nominal inflection remain relatively unexplored. Analyses of the characteristics for marking inflection, such as allomorphic categories, may increase our understanding of patterns within disordered grammar to inform the design of interventions and target selection. Data from = 30 early school-aged children ( = 75 months, = 3.38, range = 69-81 months) with DLD were analysed to develop a profile of inflectional morphology skills. Morphological categories included expressive regular past tense, third person singular, and possessive 's. Skills were profiled using an elicitation task. The relationships between expressive morphosyntax, and phonological short-term memory and working memory were also explored. Children demonstrated low accuracy in performance across all inflectional categories, including possessive . There were no significant differences between productions of different morphemes, but syllabic allomorphs ([əd]; [əz]) were produced with significantly lower accuracy than segmental allomorphs ([d], [t]; [z], [s]) across all morphological categories. All correlations between expressive morphosyntax and measures of memory were non-significant. Children with DLD show broad deficits in the ability to mark for inflection, including possessive ; this has implications for theories explaining DLD. Findings may contribute to the design of urgently needed interventions for this clinical population.
先前的研究已经证实，患有发育性语言障碍（DLD）的儿童在产生屈折形态方面存在困难，尤其是在有限标记方面。然而，其他屈折形态类别，如所有格名词屈折，仍然相对未被探索。对标记屈折的特征进行分析，如变音类别，可能会增加我们对紊乱语法中模式的理解，从而为干预措施的设计和目标选择提供信息。对 30 名早期学龄儿童（M = 75 个月，SD = 3.38，范围 69-81 个月）的数据分析，以形成屈折形态技能的特征。形态类别包括表达规则过去时、第三人称单数和所有格's。使用启发式任务对技能进行分析。还探讨了表达形态句法与语音短期记忆和工作记忆之间的关系。儿童在所有屈折类别中的表现准确性都较低，包括所有格。不同语素的产生之间没有显著差异，但与段音变音（[əd]; [əz]）相比，音节变音（[d], [t]; [z], [s]）在所有形态类别中的产生准确性明显较低。表达形态句法与记忆测量之间的所有相关性均不显著。患有 DLD 的儿童在标记屈折的能力方面表现出广泛的缺陷，包括所有格；这对解释 DLD 的理论有影响。研究结果可能有助于为这一临床群体设计急需的干预措施。
