Audiovisual speech perception deficits in unaffected siblings of children with developmental language disorder

IF 2.1 2区心理学 Q1 AUDIOLOGY & SPEECH-LANGUAGE PATHOLOGY

Brain and Language Pub Date : 2025-02-14 DOI:10.1016/j.bandl.2025.105547

Natalya Kaganovich , Rhiana Ragheb , Sharon Christ , Jennifer Schumaker

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Abstract

Siblings of children with developmental language disorder (DLD) often have weaker language skills compared to peers with typical development (TD). However, whether their language-relevant audiovisual skills are also atypical is unknown. Study 1 examined whether siblings use information about a talker’s mouth shape during phonemic processing as children with TD do. Study 2 examined siblings’ ability to match auditory words with observed word articulations. Only children with TD showed a significant MMN to audiovisual phonemic violations, suggesting that, just like in children with DLD, lip shape does not modulate phonemic processing in siblings. Children with DLD and siblings were also less accurate than children with TD at detecting audiovisual word mismatches. The N400 amplitude in children with TD was significantly larger than in children with DLD and marginally larger than in siblings. Phonemic and lexical representations in siblings lack audiovisual details, which may contribute to poor language development.

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发育性语言障碍儿童未受影响的兄弟姐妹的视听言语知觉缺陷

发展性语言障碍（DLD）儿童的兄弟姐妹通常比典型发展性语言障碍（TD）儿童的兄弟姐妹语言技能较弱。然而，他们与语言相关的视听技能是否也不典型尚不清楚。研究1考察了兄弟姐妹在音位处理过程中是否会像自闭症儿童那样使用说话人的嘴型信息。研究2测试了兄弟姐妹们将听到的单词与观察到的单词发音相匹配的能力。只有患有自闭症的儿童对音位错误表现出明显的MMN，这表明，就像患有自闭症的儿童一样，嘴唇形状不会调节兄弟姐妹的音位加工。DLD儿童及其兄弟姐妹在发现视听单词不匹配方面也不如TD儿童准确。TD患儿的N400波幅显著大于DLD患儿，且略大于兄弟姐妹。兄弟姐妹的音位和词汇表达缺乏视听细节，这可能导致语言发展不良。

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来源期刊

Brain and Language 医学-神经科学

CiteScore

4.50

自引率

8.00%

发文量

审稿时长

20.5 weeks

期刊介绍： An interdisciplinary journal, Brain and Language publishes articles that elucidate the complex relationships among language, brain, and behavior. The journal covers the large variety of modern techniques in cognitive neuroscience, including functional and structural brain imaging, electrophysiology, cellular and molecular neurobiology, genetics, lesion-based approaches, and computational modeling. All articles must relate to human language and be relevant to the understanding of its neurobiological and neurocognitive bases. Published articles in the journal are expected to have significant theoretical novelty and/or practical implications, and use perspectives and methods from psychology, linguistics, and neuroscience along with brain data and brain measures.