Improving non-native duration contrast with dichotic training in dyslexic and non-dyslexic individuals

IF 1.9 3区 教育学 Q1 EDUCATION, SPECIAL
Dyslexia Pub Date : 2023-02-24 DOI:10.1002/dys.1736
Margot Bouhon, Claire Ferreira, Sandy Bahuon, Barbara Tillmann, Nathalie Bedoin
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引用次数: 0

Abstract

Perceiving and producing English phonemic vowel length contrasts is challenging for non-native speakers. According to multi-time resolution models, endogenous slow/fast rhythms contribute, respectively, in the right/left hemispheres, to long/short acoustic cue processing. This study introduced a perceptual training method implementing dichotic stimulation to improve /i:/-/ɪ/ processing by promoting hemispheric complementarity. Twenty non-dyslexic and 20 dyslexic French adults received 1 hr-training over 3 days. Productions were evaluated with pre-/post-tests. Training enhanced vowel duration contrast in word production by /i:/ lengthening and /ɪ/ shortening in both groups. Adults with dyslexia compensated fewer /i:/ lengthening by /ɪ/ shortening than did non-dyslexic adults. Transfer from perceptual training to production seems possible for foreign-language learning even in dyslexic adults. The extent to which dichotic presentation contributed to training effectiveness cannot be evaluated here, but the triggering of lengthening and shortening mechanisms suggests that lateralized complementary skills have been enhanced by dichotic stimulation.

在阅读困难和非阅读困难个体中提高非母语持续时间与二元训练的对比
感知和产生英语音位元音长度对比对非母语人士来说是一个挑战。根据多时间分辨率模型,内源性慢/快节奏分别在右半球和左半球中对长/短声学线索处理作出贡献。本研究介绍了一种知觉训练方法,通过促进半球互补性来实现二元刺激,以改善/i:/-/ / / /加工。20名非阅读障碍者和20名阅读障碍者在3天内接受了1小时的训练。产品通过前/后测试进行评估。在两组中,通过/i:/加长和/ / /缩短,训练增强了元音持续时间的对比。有阅读障碍的成年人比没有阅读障碍的成年人补偿/ / /缩短的/i:/少。在外语学习中,从感知训练到生产的转变似乎是可能的,即使是有阅读障碍的成年人。目前还无法评估两种表现对训练效果的影响程度,但延长和缩短机制的触发表明,两种刺激增强了偏侧互补技能。
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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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