{"title":"The use of F0 in speech segmentation by adults with dyslexia and skilled readers","authors":"Mar Cordero-Rull , Ambre Denis-Noël , Elsa Spinelli , Fanny Meunier","doi":"10.1016/j.neuropsychologia.2025.109155","DOIUrl":null,"url":null,"abstract":"<div><div>This paper examines the use of intonational cues for word segmentation in skilled French readers and adult dyslexics, and more specifically, the influence of the fundamental frequency (F0). Participants listened to phonemically identical sequences such as /selami/, <em>c'est la mie/l'amie</em> ‘it's the crumb/friend’, and had to perform a two-alternative forced choice task in Exp1 and a word repetition task in Exp2. The F0 slope and/or mean value of the first vowel /a/ of the natural consonant-initial production <em>la mie</em> were manipulated to test whether it influences perceived segmentation.</div><div>The present study shows that not only increasing the F0 mean value but also rotating the F0 slope alone led to more vowel initial segmentation, thus biasing speech segmentation in both tasks. A similar segmentation strategy was found for both groups of participants. Our findings suggest that both skilled readers and adult dyslexics compute F0 trajectories to find the beginning of content words.</div></div>","PeriodicalId":19279,"journal":{"name":"Neuropsychologia","volume":"213 ","pages":"Article 109155"},"PeriodicalIF":2.0000,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neuropsychologia","FirstCategoryId":"102","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0028393225000909","RegionNum":3,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"BEHAVIORAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This paper examines the use of intonational cues for word segmentation in skilled French readers and adult dyslexics, and more specifically, the influence of the fundamental frequency (F0). Participants listened to phonemically identical sequences such as /selami/, c'est la mie/l'amie ‘it's the crumb/friend’, and had to perform a two-alternative forced choice task in Exp1 and a word repetition task in Exp2. The F0 slope and/or mean value of the first vowel /a/ of the natural consonant-initial production la mie were manipulated to test whether it influences perceived segmentation.
The present study shows that not only increasing the F0 mean value but also rotating the F0 slope alone led to more vowel initial segmentation, thus biasing speech segmentation in both tasks. A similar segmentation strategy was found for both groups of participants. Our findings suggest that both skilled readers and adult dyslexics compute F0 trajectories to find the beginning of content words.
本文研究了熟练法语读者和成人阅读障碍患者在分词时语调线索的使用,更具体地说,基本频率(F0)的影响。参与者听了语音相同的序列,如/selami/, c'est la mie/l'amie,“这是面包屑/朋友”,并在实验1中执行两个选项的强制选择任务,在实验2中执行单词重复任务。对自然辅音-初始音la mie的第一个元音/a/的F0斜率和/或平均值进行了操作,以测试它是否影响感知的分割。本研究表明,不仅增加F0平均值,而且单独旋转F0斜率会导致更多的元音初始分割,从而使两个任务中的语音分割产生偏置。在两组参与者中发现了类似的分割策略。我们的研究结果表明,熟练读者和成年失读症患者都通过计算F0轨迹来找到实义词的开头。
期刊介绍:
Neuropsychologia is an international interdisciplinary journal devoted to experimental and theoretical contributions that advance understanding of human cognition and behavior from a neuroscience perspective. The journal will consider for publication studies that link brain function with cognitive processes, including attention and awareness, action and motor control, executive functions and cognitive control, memory, language, and emotion and social cognition.