Department of Psychology, University of Birmingham, Birmingham, B15 2TT, UK.
Department of Psychology, University of Birmingham, Birmingham, B15 2TT, UK; Department of Foreign Languages and Translation, University of Agder, 4604 Kristiansand, Norway.
J Fluency Disord. 2021 Mar;67:105827. doi: 10.1016/j.jfludis.2020.105827. Epub 2021 Jan 6.
This study assessed the prevalence of childhood stuttering in adults with dyslexia (AWD) and the prevalence of dyslexia in adults who stutter (AWS). In addition, the linguistic profiles of 50 AWD, 30 AWS and 84 neurotypical adults were measured. We found that 17 out of 50 AWD (34 %) reported stuttering during childhood compared to 1 % of the neurotypical population. This was moderated by the severity of dyslexia: People with mild dyslexia showed a lower prevalence rate (15 %) of childhood stuttering than those with severe dyslexia (47 %). In addition, we observed that 50 % of the AWS (n = 30) fulfilled the diagnostic criteria of dyslexia, even though they had never been diagnosed as dyslexic. Compared to neurotypical adults, phonological working memory, awareness, and retrieval were similarly reduced in AWS and AWD. The findings supports the view that stuttering and dyslexia may share a phonological deficit.
本研究评估了阅读障碍成人（AWD）中儿童口吃的患病率，以及口吃成人（AWS）中阅读障碍的患病率。此外，还测量了 50 名 AWD、30 名 AWS 和 84 名神经典型成年人的语言特征。我们发现，50 名 AWD 中有 17 名（34%）报告在儿童时期有口吃，而神经典型人群的这一比例为 1%。阅读障碍的严重程度对此有调节作用：轻度阅读障碍者的儿童期口吃患病率（15%）低于重度阅读障碍者（47%）。此外，我们观察到，50%的 AWS（n=30）符合阅读障碍的诊断标准，尽管他们从未被诊断为阅读障碍。与神经典型成年人相比，AWS 和 AWD 的语音工作记忆、意识和检索能力也相似地降低。这些发现支持口吃和阅读障碍可能共享语音缺陷的观点。
