IPSY, Université catholique de Louvain (UCLouvain), Louvain-la-Neuve, Belgium.
LCLD, CRCN, Université libre de Bruxelles (ULB), Avenue F. Roosevelt 50 - CP 191, 1050, Brussels, Belgium.
Dyslexia. 2022 Feb;28(1):4-19. doi: 10.1002/dys.1700. Epub 2021 Sep 27.
The current study investigated the extraction of orthographic and phonological structure of written words in adults with dyslexia. In adults without learning difficulties, Chetail and Content showed that orthographic structure, as determined by the number of vowel letter clusters, influences visual word length estimation. The authors also found a phonological effect determined by the number of syllables of words. In the present study, 22 French-speaking students diagnosed with dyslexia in childhood and 22 students without learning disabilities were compared. All participants performed the task of estimating word length. The pattern of results obtained by Chetail and Content was replicated: length estimates were biased by both the number of syllables and the number of vowel letter clusters. The study showed a significant interaction between phonological bias and group. The phonological effect was less important in students with dyslexia, suggesting reduced sensitivity to phonological parsing in reading. In contrast, the orthographic effect did not differ significantly between groups, suggesting that the sensitivity to the orthographic structure of written words is preserved in students with dyslexia despite their low-quality orthographic representations. We conclude that there is no systematic association between sensitivity to the structure of representations and quality of their content.
本研究探讨了阅读障碍成年人对书面单词的正字法和语音结构的提取。在没有学习困难的成年人中，Chetail 和 Content 表明，正字法结构（由元音字母簇的数量决定）会影响视觉单词长度的估计。作者还发现了一个由单词音节数量决定的语音效应。在本研究中，比较了 22 名在童年时期被诊断为阅读障碍的法语学生和 22 名没有学习障碍的学生。所有参与者都执行了估计单词长度的任务。Chetail 和 Content 的结果模式得到了复制：长度估计受到音节数量和元音字母簇数量的双重影响。研究还显示，语音偏差和组别之间存在显著的交互作用。阅读障碍学生的语音效应不那么重要，这表明他们在阅读中对语音切分的敏感性降低。相比之下，两组之间的正字法效应没有显著差异，这表明尽管阅读障碍学生的正字法表示质量较低，但他们对书面单词的正字法结构的敏感性得以保留。我们的结论是，对表示结构的敏感性和其内容质量之间没有系统的关联。
