“Same, same but different”: The optimal viewing position effect in developmental dyslexia, developmental coordination disorder and comorbid disorders

IF 1.9 3区 教育学 Q1 EDUCATION, SPECIAL
Dyslexia Pub Date : 2021-06-02 DOI:10.1002/dys.1688
Stéphanie Bellocchi, Stéphanie Ducrot
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引用次数: 3

Abstract

The optimal viewing position (OVP) effect indicates that words are identified most quickly when the eyes fixate near the word centre in alphabetic languages. In two studies, we tested OVP in typically developing readers and children with developmental dyslexia (DD), developmental coordination disorder (DCD) and with both disorders (DD + DCD), using a variable-viewing-position technique. Study 1 showed that typically developing readers had developed highly automatized procedures of left-to-right attentional scanning resulting in an inverted J-shape VP curve comparable to what is observed in adult readers and that dyslexics showed non-prototypical one. In Study 2, we observed more typical procedures of left-to-right attentional scanning in children with DCD, isolated or comorbid, compared to DD. Moreover, given the absence of significant group differences between children with DD + DCD and children with isolated DD or DCD, our results reinforce the idea that the comorbid condition does not add to the severity of OVP anomalies. We then concluded that OVP atypicalities are specific to children with DD. Finally, we discussed the usefulness of the OVP effect as a clinical tool to identify possible OVP atypicalities that could be specific of some neurodevelopmental disorders (i.e., DD, DCD or DCD + DD).

“相同,相同但不同”:发展性阅读障碍、发展性协调障碍及共病障碍的最佳视位效应
最佳观看位置(OVP)效应表明,在字母语言中,当眼睛注视在单词中心附近时,识别单词的速度最快。在两项研究中,我们使用可变观看位置技术测试了正常发育的读者和患有发展性阅读障碍(DD)、发展性协调障碍(DCD)以及两种障碍(DD + DCD)的儿童的OVP。研究1表明,正常发展的阅读者已经发展出高度自动化的从左到右的注意力扫描程序,从而产生了一个倒j形的VP曲线,与成人阅读者所观察到的相似,而读写困难的阅读者表现出非原型曲线。在研究2中,我们观察到与DD相比,单独或合并症的DCD儿童的左至右注意扫描过程更典型。此外,考虑到DD + DCD儿童与孤立DD或DCD儿童之间没有显著的组间差异,我们的结果强化了合并症不会增加OVP异常严重程度的观点。最后,我们讨论了OVP效应作为一种临床工具的有用性,可以识别某些神经发育障碍(即DD、DCD或DCD + DD)可能存在的OVP非典征性。
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来源期刊
Dyslexia
Dyslexia Multiple-
CiteScore
3.90
自引率
9.10%
发文量
27
期刊介绍: DYSLEXIA provides reviews and reports of research, assessment and intervention practice. In many fields of enquiry theoretical advances often occur in response to practical needs; and a central aim of the journal is to bring together researchers and practitioners in the field of dyslexia, so that each can learn from the other. Interesting developments, both theoretical and practical, are being reported in many different countries: DYSLEXIA is a forum in which a knowledge of these developments can be shared by readers in all parts of the world. The scope of the journal includes relevant aspects of Cognitive, Educational, Developmental and Clinical Psychology Child and Adult Special Education and Remedial Education Therapy and Counselling Neuroscience, Psychiatry and General Medicine The scope of the journal includes relevant aspects of: - Cognitive, Educational, Developmental and Clinical Psychology - Child and Adult Special Education and Remedial Education - Therapy and Counselling - Neuroscience, Psychiatry and General Medicine
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