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Conte G, Quadrana L, Zotti L, Di Garbo A, Oliveri M. Prismatic adaptation coupled with cognitive training as novel treatment for developmental dyslexia: a randomized controlled trial. Sci Rep 2024; 14:7148. [PMID: 38531968 DOI: 10.1038/s41598-024-57499-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024] Open
Abstract
Despite intense and costly treatments, developmental dyslexia (DD) often persists into adulthood. Several brain skills unrelated to speech sound processing (i.e., phonology), including the spatial distribution of visual attention, are abnormal in DD and may represent possible treatment targets. This study explores the efficacy in DD of rightward prismatic adaptation (rPA), a visuomotor adaptation technique that enables visuo-attentive recalibration through shifts in the visual field induced by prismatic goggles. A digital intervention of rPA plus cognitive training was delivered weekly over 10 weeks to adolescents with DD (aged 13-17) assigned either to treatment (N = 35) or waitlist (N = 35) group. Efficacy was evaluated by repeated measures MANOVA assessing changes in working memory index (WMI), processing speed index (PSI), text reading speed, and words/pseudowords reading accuracy. rPA treatment was significantly more effective than waitlist (p ≤ 0.001; ηp2 = 0.815). WMI, PSI, and reading speed increased in the intervention group only (p ≤ 0.001, ηp2 = 0.67; p ≤ 0.001, ηp2 = 0.58; p ≤ 0.001, ηp2 = 0.29, respectively). Although modest change was detected for words and pseudowords accuracy in the waitlist group only (words: p ≤ 0.001, d = 0.17, pseudowords: p = 0.028; d = 0.27), between-group differences were non-significant. rPA-coupled cognitive training enhances cognitive and reading abilities in adolescents with DD. This innovative approach could have implications for early remedial treatment.
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Affiliation(s)
- Giulia Conte
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy.
| | - Lauro Quadrana
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy
| | - Lilian Zotti
- Child and Adolescent Neuropsychiatry Division, Department of Human Neuroscience, Sapienza University of Rome, 108 via dei Sabelli, 00185, Rome, Italy
| | - Agnese Di Garbo
- NeuroTeam Life & Science, 112 via della Libertà, 90143, Palermo, Italy
| | - Massimiliano Oliveri
- Department of Biomedicine, Neurosciences and Advanced Diagnostics (BiND), University of Palermo, 129 via del Vespro, 90127, Palermo, Italy
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2
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Couvignou M, Tillmann B, Caclin A, Kolinsky R. Do developmental dyslexia and congenital amusia share underlying impairments? Child Neuropsychol 2023; 29:1294-1340. [PMID: 36606656 DOI: 10.1080/09297049.2022.2162031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 12/19/2022] [Indexed: 01/07/2023]
Abstract
Developmental dyslexia and congenital amusia have common characteristics. Yet, their possible association in some individuals has been addressed only scarcely. Recently, two converging studies reported a sizable comorbidity rate between these two neurodevelopmental disorders (Couvignou et al., Cognitive Neuropsychology 2019; Couvignou & Kolinsky, Neuropsychologia 2021). However, the reason for their association remains unclear. Here, we investigate the hypothesis of shared underlying impairments between dyslexia and amusia. Fifteen dyslexic children with amusia (DYS+A), 15 dyslexic children without amusia (DYS-A), and two groups of 25 typically developing children matched on either chronological age (CA) or reading level (RL) were assessed with a behavioral battery aiming to investigate phonological and pitch processing capacities at auditory memory, perceptual awareness, and attentional levels. Overall, our results suggest that poor auditory serial-order memory increases susceptibility to comorbidity between dyslexia and amusia and may play a role in the development of the comorbid phenotype. In contrast, the impairments observed in the DYS+A children for auditory item memory, perceptual awareness, and attention might be a consequence of their reduced reading experience combined with weaker musical skills. Comparing DYS+A and DYS-A children suggests that the latter are more resourceful and/or have more effective compensatory strategies, or that their phenotype results from a different developmental trajectory. We will discuss the relevance of these findings for delving into the etiology of these two developmental disorders and address their implications for future research and practice.
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Affiliation(s)
- Manon Couvignou
- Unité de Recherche en Neurosciences Cognitives (Unescog), Center for Research in Cognition & Neurosciences (CRCN), Université Libre de Bruxelles (ULB), Brussels, Belgium
| | - Barbara Tillmann
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University Lyon 1, Lyon, France
| | - Anne Caclin
- Lyon Neuroscience Research Center, CNRS, UMR 5292, INSERM, U1028, Lyon, France
- University Lyon 1, Lyon, France
| | - Régine Kolinsky
- Unité de Recherche en Neurosciences Cognitives (Unescog), Center for Research in Cognition & Neurosciences (CRCN), Université Libre de Bruxelles (ULB), Brussels, Belgium
- Fonds de la Recherche Scientifique-FNRS (FRS-FNRS), Brussels, Belgium
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3
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Tervaniemi M. The neuroscience of music – towards ecological validity. Trends Neurosci 2023; 46:355-364. [PMID: 37012175 DOI: 10.1016/j.tins.2023.03.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/28/2023] [Accepted: 03/02/2023] [Indexed: 04/03/2023]
Abstract
Studies in the neuroscience of music gained momentum in the 1990s as an integrated part of the well-controlled experimental research tradition. However, during the past two decades, these studies have moved toward more naturalistic, ecologically valid paradigms. Here, I introduce this move in three frameworks: (i) sound stimulation and empirical paradigms, (ii) study participants, and (iii) methods and contexts of data acquisition. I wish to provide a narrative historical overview of the development of the field and, in parallel, to stimulate innovative thinking to further advance the ecological validity of the studies without overlooking experimental rigor.
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Affiliation(s)
- Mari Tervaniemi
- Centre of Excellence in Music, Mind, Body, and Brain, Faculty of Educational Sciences, University of Helsinki, Helsinki, Finland; Cognitive Brain Research Unit, Department of Psychology and Locopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
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4
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Frey A, Lessard A, Carchon I, Provasi J, Pulido L. Rhythmic training, literacy, and graphomotor skills in kindergarteners. Front Psychol 2022; 13:959534. [PMID: 36571064 PMCID: PMC9773882 DOI: 10.3389/fpsyg.2022.959534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 11/17/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction The aim of this manuscript is twofold: first, to investigate the relationship between rhythmic, phonological and graphomotor skills in kindergarten children; and second, to evaluate the possible impact of rhythmic training on the two other skills. Methods To that end, we selected a sample of 78 children in Québec. Forty-two children received rhythmic training (experimental group) and 34 arts training (active control group) during the same period (10 weeks). Before and after training, children in both groups were assessed for general skills (forward and backward memory span, vocabulary, non-verbal ability), rhythmic skills (synchronization and discrimination tasks), literacy skills (phonological skills - syllable counting, syllable deletion, rhyme discrimination - and invented spelling skills) and graphomotor skills (legibility of letter writing, quality of copying of geometric shapes). Results Results showed correlations between the child's rhythmic and literacy skills, as well as between rhythm synchronization and pen pressure. In addition, rhythmic training showed improvement in rhythmic abilities, but this did not transfer to literacy or graphomotor development (apart from a significant increase in the duration of pauses in both groups at post-test, with a larger improvement for the rhythm group). Discussion These results are discussed in terms of duration and intensity of learning, and they highlight the possible benefits of informal rhythm practices in the classroom.
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Affiliation(s)
- Aline Frey
- Laboratoire de Neurosciences Cognitives, UMR 7291, CNRS – INSPE de l’Université d’Aix-Marseille, Marseille, France
| | - Andrée Lessard
- Département des sciences de l’éducation, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
- Centre de recherche interuniversitaire sur la formation et la profession enseignante (CRIFPE), Montréal, QC, Canada
- Consortium régional de recherche en éducation (CRRE), Saguenay, QC, Canada
- Observatoire interdisciplinaire de création et de recherche en musique, Université Laval (OICRM-ULaval), Québec, QC, Canada
| | - Isabelle Carchon
- Laboratoire CHArt, Cognitions Humaine et ARTificielle, EPHE - PSL, École Pratique des Hautes Études - Paris Sciences Lettres, Campus Condorcet, Aubervilliers, France
| | - Joëlle Provasi
- Laboratoire CHArt, Cognitions Humaine et ARTificielle, EPHE - PSL, École Pratique des Hautes Études - Paris Sciences Lettres, Campus Condorcet, Aubervilliers, France
| | - Loïc Pulido
- Consortium Régional de Recherche en Éducation (CRRE) et département des sciences de l’éducation, Université du Québec à Chicoutimi, Saguenay, QC, Canada
- Centre de Recherche et d’Intervention sur la Réussite Scolaire (CRIRES), Université Laval, Québec, QC, Canada
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5
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Neves L, Correia AI, Castro SL, Martins D, Lima CF. Does music training enhance auditory and linguistic processing? A systematic review and meta-analysis of behavioral and brain evidence. Neurosci Biobehav Rev 2022; 140:104777. [PMID: 35843347 DOI: 10.1016/j.neubiorev.2022.104777] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 02/02/2023]
Abstract
It is often claimed that music training improves auditory and linguistic skills. Results of individual studies are mixed, however, and most evidence is correlational, precluding inferences of causation. Here, we evaluated data from 62 longitudinal studies that examined whether music training programs affect behavioral and brain measures of auditory and linguistic processing (N = 3928). For the behavioral data, a multivariate meta-analysis revealed a small positive effect of music training on both auditory and linguistic measures, regardless of the type of assignment (random vs. non-random), training (instrumental vs. non-instrumental), and control group (active vs. passive). The trim-and-fill method provided suggestive evidence of publication bias, but meta-regression methods (PET-PEESE) did not. For the brain data, a narrative synthesis also documented benefits of music training, namely for measures of auditory processing and for measures of speech and prosody processing. Thus, the available literature provides evidence that music training produces small neurobehavioral enhancements in auditory and linguistic processing, although future studies are needed to confirm that such enhancements are not due to publication bias.
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Affiliation(s)
- Leonor Neves
- Centro de Investigação e Intervenção Social (CIS-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal
| | - Ana Isabel Correia
- Centro de Investigação e Intervenção Social (CIS-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal
| | - São Luís Castro
- Centro de Psicologia da Universidade do Porto (CPUP), Faculdade de Psicologia e de Ciências da Educação da Universidade do Porto (FPCEUP), Porto, Portugal
| | - Daniel Martins
- Department of Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK; NIHR Maudsley Biomedical Research Centre (BRC), South London and Maudsley NHS Foundation Trust, London, UK
| | - César F Lima
- Centro de Investigação e Intervenção Social (CIS-IUL), Instituto Universitário de Lisboa (ISCTE-IUL), Lisboa, Portugal.
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6
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Sun C, Meng X, Du B, Zhang Y, Liu L, Dong Q, Georgiou GK, Nan Y. Behavioral and neural rhythm sensitivities predict phonological awareness and word reading development in Chinese. BRAIN AND LANGUAGE 2022; 230:105126. [PMID: 35487083 DOI: 10.1016/j.bandl.2022.105126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 03/07/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
The present study examined both the development of behavioral and electrophysiological rhythm processing and their contribution to phonological awareness and word reading in Chinese. We followed a sample of 47 Mandarin-speaking Chinese children from age 9 (Grade 3) to age 11 (Grade 5). Results showed first a significant improvement over time in behavioral beat perception and in P3as for small beat changes. Second, behavioral and neural beat sensitivities at age 9 predicted phonological awareness (phoneme deletion and tone identification) at age 11 and its development over the two-year span of the study. Neural beat sensitivities at age 9 also explained unique variance in reading accuracy (but not reading fluency) at age 11 and its two-year development. Taken together, these findings suggest that rhythm and Chinese reading-related skills are intricately related. Neural rhythm sensitivities could serve as predictive biomarkers for the development of phonological awareness and reading in Chinese school-age children.
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Affiliation(s)
- Chen Sun
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Xiangyun Meng
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Boqi Du
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Yuxuan Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - Li Liu
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.
| | - Qi Dong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China
| | - George K Georgiou
- Department of Educational Psychology, University of Alberta, Edmonton, Alberta T6G 2G5, Canada
| | - Yun Nan
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG, McGovern Institute for Brain Research, Beijing Normal University, Beijing 100875, China.
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7
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Szewczyk AK, Mitosek-Szewczyk K, Dworzańska E. Where words are powerless to express: Use of music in paediatric neurology. J Pediatr Rehabil Med 2022; 16:179-194. [PMID: 35599509 DOI: 10.3233/prm-200802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Music is an art form that strongly affects people and can elicit many different emotions at the same time, including happiness, anxiety, sadness, and even ecstasy. What is it about music that causes such a strong reaction from each of us? Music engages many senses, which in turn can produce a multiplicity of responses and help create more extensive neuronal connections, as well as influence behaviour through structural and functional changes in the brain. Music-based interventions as a therapeutic tool in rehabilitation are becoming more common. It is said that the impact of music on the human body is positive. However, what impact does music have on the young nervous system, especially the affected one? This review presents the advantages and disadvantages of the use of music in paediatric neurology to treat dyslexia, cerebral palsy, and stroke, among others. Potential negative impacts such as musicogenic epilepsy and hallucinations will be discussed.
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Affiliation(s)
- Anna K Szewczyk
- Department of Neurology, Medical University of Lublin, Lublin, Poland.,Doctoral School, Medical University of Lublin, Lublin, Poland
| | | | - Ewa Dworzańska
- Department of Child Neurology, Medical University of Lublin, Lublin, Poland
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8
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Frey A, Barbaroux M, Dittinger E, Besson M. Effects of Psychoacoustic Training on the Pre-Attentive Processing of Harmonic Sounds and Syllables. JOURNAL OF SPEECH, LANGUAGE, AND HEARING RESEARCH : JSLHR 2022; 65:2003-2015. [PMID: 35503959 DOI: 10.1044/2022_jslhr-21-00441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
PURPOSE This article aimed at investigating the neural underpinnings of music-to-language transfer effects at the pre-attentive level of processing. METHOD We conducted a longitudinal experiment with a test-training-retest procedure. Nonmusician adults were trained either on frequency (experimental group) or on intensity (control group) of harmonic tones using methods from psychophysics. Pre- and posttraining, we recorded brain electrical activity and we analyzed the mismatch negativity (MMN) and the P3a component both to harmonic complex sounds and to syllables varying in frequency. RESULTS Frequency training influenced the pre-attentive perception of pitch for large harmonic deviant sounds but not for syllables. CONCLUSION Results are discussed in terms of near and far transfer effects from psychoacoustic training to pre-attentive pitch processing and as possibly showing some limits to transfer effects.
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Affiliation(s)
- Aline Frey
- Laboratoire de Neurosciences Cognitives (LNC), CNRS, and Aix-Marseille University, Université Publique de France
- Institute for Language and Communication in the Brain (ILCB), Aix-Marseille University, France
| | - Mylène Barbaroux
- Laboratoire de Neurosciences Cognitives (LNC), CNRS, and Aix-Marseille University, Université Publique de France
| | - Eva Dittinger
- Laboratoire de Neurosciences Cognitives (LNC), CNRS, and Aix-Marseille University, Université Publique de France
- Laboratoire Parole et Langage (LPL), CNRS, and Aix-Marseille University, Université Publique de France
| | - Mireille Besson
- Laboratoire de Neurosciences Cognitives (LNC), CNRS, and Aix-Marseille University, Université Publique de France
- Institute for Language and Communication in the Brain (ILCB), Aix-Marseille University, France
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9
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Bojner Horwitz E, Korošec K, Theorell T. Can Dance and Music Make the Transition to a Sustainable Society More Feasible? Behav Sci (Basel) 2022; 12:bs12010011. [PMID: 35049622 PMCID: PMC8772942 DOI: 10.3390/bs12010011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/25/2021] [Accepted: 01/07/2022] [Indexed: 12/23/2022] Open
Abstract
Transition to sustainability is a process that requires change on all levels of society from the physical to the psychological. This review takes an interdisciplinary view of the landscapes of research that contribute to the development of pro-social behaviors that align with sustainability goals, or what we call 'inner sustainability'. Engaging in musical and dance activities can make people feel trust and connectedness, promote prosocial behavior within a group, and also reduce prejudices between groups. Sustained engagement in these art forms brings change in a matter of seconds (such as hormonal changes and associated stress relief), months (such as improved emotional wellbeing and learning outcomes), and decades (such as structural changes to the brains of musicians and dancers and superior skills in expressing and understanding emotion). In this review, we bridge the often-separate domains of the arts and sciences by presenting evidence that suggests music and dance promote self-awareness, learning, care for others and wellbeing at individual and group levels. In doing so, we argue that artistic practices have a key role to play in leading the transformations necessary for a sustainable society. We require a movement of action that provides dance and music within a constructive framework for stimulating social sustainability.
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Affiliation(s)
- Eva Bojner Horwitz
- Department of Music, Pedagogy and Society, Royal College of Music, P.O. Box 277 11, SE-115 91 Stockholm, Sweden; (K.K.); (T.T.)
- Center for Social Sustainability, Institution of Neurobiology, Care Sciences and Society, Karolinska Institute, SE-141 83 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institute, SE-171 77 Stockholm, Sweden
- Correspondence:
| | - Kaja Korošec
- Department of Music, Pedagogy and Society, Royal College of Music, P.O. Box 277 11, SE-115 91 Stockholm, Sweden; (K.K.); (T.T.)
- Center for Social Sustainability, Institution of Neurobiology, Care Sciences and Society, Karolinska Institute, SE-141 83 Stockholm, Sweden
- Department of Clinical Neuroscience, Karolinska Institute, SE-171 77 Stockholm, Sweden
| | - Töres Theorell
- Department of Music, Pedagogy and Society, Royal College of Music, P.O. Box 277 11, SE-115 91 Stockholm, Sweden; (K.K.); (T.T.)
- Center for Social Sustainability, Institution of Neurobiology, Care Sciences and Society, Karolinska Institute, SE-141 83 Stockholm, Sweden
- Stress Research Institute, Stockholm University, SE-106 91 Stockholm, Sweden
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Fiveash A, Bedoin N, Gordon RL, Tillmann B. Processing rhythm in speech and music: Shared mechanisms and implications for developmental speech and language disorders. Neuropsychology 2021; 35:771-791. [PMID: 34435803 PMCID: PMC8595576 DOI: 10.1037/neu0000766] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE Music and speech are complex signals containing regularities in how they unfold in time. Similarities between music and speech/language in terms of their auditory features, rhythmic structure, and hierarchical structure have led to a large body of literature suggesting connections between the two domains. However, the precise underlying mechanisms behind this connection remain to be elucidated. METHOD In this theoretical review article, we synthesize previous research and present a framework of potentially shared neural mechanisms for music and speech rhythm processing. We outline structural similarities of rhythmic signals in music and speech, synthesize prominent music and speech rhythm theories, discuss impaired timing in developmental speech and language disorders, and discuss music rhythm training as an additional, potentially effective therapeutic tool to enhance speech/language processing in these disorders. RESULTS We propose the processing rhythm in speech and music (PRISM) framework, which outlines three underlying mechanisms that appear to be shared across music and speech/language processing: Precise auditory processing, synchronization/entrainment of neural oscillations to external stimuli, and sensorimotor coupling. The goal of this framework is to inform directions for future research that integrate cognitive and biological evidence for relationships between rhythm processing in music and speech. CONCLUSION The current framework can be used as a basis to investigate potential links between observed timing deficits in developmental disorders, impairments in the proposed mechanisms, and pathology-specific deficits which can be targeted in treatment and training supporting speech therapy outcomes. On these grounds, we propose future research directions and discuss implications of our framework. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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Affiliation(s)
- Anna Fiveash
- Lyon Neuroscience Research Center, CRNL, CNRS, UMR5292, INSERM, U1028, F-69000, Lyon, France
- University Lyon 1, Lyon, France
| | - Nathalie Bedoin
- Lyon Neuroscience Research Center, CRNL, CNRS, UMR5292, INSERM, U1028, F-69000, Lyon, France
- University Lyon 1, Lyon, France
- University of Lyon 2, CNRS, UMR5596, Lyon, F-69000, France
| | - Reyna L. Gordon
- Department of Otolaryngology – Head & Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee
- Vanderbilt Genetics Institute, Vanderbilt University, Nashville, Tennessee
- Vanderbilt Kennedy Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Barbara Tillmann
- Lyon Neuroscience Research Center, CRNL, CNRS, UMR5292, INSERM, U1028, F-69000, Lyon, France
- University Lyon 1, Lyon, France
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The Neurological Basis of Developmental Dyslexia and Related Disorders: A Reappraisal of the Temporal Hypothesis, Twenty Years on. Brain Sci 2021; 11:brainsci11060708. [PMID: 34071786 PMCID: PMC8229928 DOI: 10.3390/brainsci11060708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/13/2021] [Accepted: 05/20/2021] [Indexed: 01/10/2023] Open
Abstract
In a now-classic article published a couple of decades ago (Brain, 2000; 123: 2373-2399), I proposed an "extended temporal processing deficit hypothesis of dyslexia", suggesting that a deficit in temporal processing could explain not only language-related peculiarities usually noticed in dyslexic children, but also a wider range of symptoms related to impaired processing of time in general. In the present review paper, I will revisit this "historical" hypothesis both in the light of a new clinical perspective, including the central yet poorly explained notion of comorbidity, and also taking a new look at the most recent experimental work, mainly focusing on brain imaging data. First, consistent with daily clinical practice, I propose to distinguish three groups of children who fail to learn to read, of fairly equal occurrence, who share the same initial presentation (difficulty in mastering the rules of grapheme-phoneme correspondence) but with differing associated signs and/or comorbid conditions (language disorders in the first group, attentional deficits in the second one, and motor coordination problems in the last one), thus suggesting, at least in part, potentially different triggering mechanisms. It is then suggested, in the light of brain imaging information available to date, that the three main clinical presentations/associations of cognitive impairments that compromise reading skills acquisition correspond to three distinct patterns of miswiring or "disconnectivity" in specific brain networks which have in common their involvement in the process of learning and their heavy reliance on temporal features of information processing. With reference to the classic temporal processing deficit of dyslexia and to recent evidence of an inability of the dyslexic brain to achieve adequate coupling of oscillatory brain activity to the temporal features of external events, a general model is proposed according to which a common mechanism of temporal uncoupling between various disconnected-and/or mis-wired-processors may account for distinct forms of specific learning disorders, with reading impairment being a more or less constant feature. Finally, the potential therapeutic implications of such a view are considered, with special emphasis on methods seeking to enhance cross-modal connectivity between separate brain systems, including those using rhythmic and musical training in dyslexic patients.
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12
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Mathematical Modeling of Brain Activity under Specific Auditory Stimulation. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:6676681. [PMID: 33976707 PMCID: PMC8084686 DOI: 10.1155/2021/6676681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/28/2021] [Accepted: 03/10/2021] [Indexed: 12/22/2022]
Abstract
Understanding the connection between different stimuli and the brain response represents a complex research area. However, the use of mathematical models for this purpose is relatively unexplored. The present study investigates the effects of three different auditory stimuli on cerebral biopotentials by means of mathematical functions. The effects of acoustic stimuli (S1, S2, and S3) on cerebral activity were evaluated by electroencephalographic (EEG) recording on 21 subjects for 20 minutes of stimulation, with a 5-minute period of silence before and after stimulation. For the construction of the mathematical models used for the study of the EEG rhythms, we used the Box-Jenkins methodology. Characteristic mathematical models were obtained for the main frequency bands and were expressed by 2 constant functions, 8 first-degree functions, a second-degree function, a fourth-degree function, 6 recursive functions, and 4 periodic functions. The values obtained for the variance estimator are low, demonstrating that the obtained models are correct. The resulting mathematical models allow us to objectively compare the EEG response to the three stimuli, both between the stimuli itself and between each stimulus and the period before stimulation.
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13
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O'Brien G, Yeatman JD. Bridging sensory and language theories of dyslexia: Toward a multifactorial model. Dev Sci 2020; 24:e13039. [PMID: 33021019 PMCID: PMC8244000 DOI: 10.1111/desc.13039] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 08/30/2020] [Accepted: 09/08/2020] [Indexed: 01/27/2023]
Abstract
Competing theories of dyslexia posit that reading difficulties arise from impaired visual, auditory, phonological, or statistical learning mechanisms. Importantly, many theories posit that dyslexia reflects a cascade of impairments emanating from a single “core deficit”. Here we report two studies evaluating core deficit and multifactorial models. In Study 1, we use publicly available data from the Healthy Brain Network to test the accuracy of phonological processing measures for predicting dyslexia diagnosis and find that over 30% of cases are misclassified (sensitivity = 66.7%; specificity = 68.2%). In Study 2, we collect a battery of psychophysical measures of visual motion processing and standardized measures of phonological processing in 106 school‐aged children to investigate whether dyslexia is best conceptualized under a core‐deficit model, or as a disorder with heterogenous origins. Specifically, by capitalizing on the drift diffusion model to analyze performance on a visual motion discrimination experiment, we show that deficits in visual motion processing, perceptual decision‐making, and phonological processing manifest largely independently. Based on statistical models of how variance in reading skill is parceled across measures of visual processing, phonological processing, and decision‐making, our results challenge the notion that a unifying deficit characterizes dyslexia. Instead, these findings indicate a model where reading skill is explained by several distinct, additive predictors, or risk factors, of reading (dis)ability.
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Affiliation(s)
- Gabrielle O'Brien
- Institute for Learning & Brain Sciences, University of Washington, Seattle, WA, USA.,Department of Speech and Hearing Sciences, University of Washington, Seattle, WA, USA
| | - Jason D Yeatman
- Graduate School of Education, Stanford University, Stanford, CA, USA.,Division of Developmental-Behavioral Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
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Marchesotti S, Nicolle J, Merlet I, Arnal LH, Donoghue JP, Giraud AL. Selective enhancement of low-gamma activity by tACS improves phonemic processing and reading accuracy in dyslexia. PLoS Biol 2020; 18:e3000833. [PMID: 32898188 PMCID: PMC7478834 DOI: 10.1371/journal.pbio.3000833] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 08/04/2020] [Indexed: 12/11/2022] Open
Abstract
The phonological deficit in dyslexia is associated with altered low-gamma oscillatory function in left auditory cortex, but a causal relationship between oscillatory function and phonemic processing has never been established. After confirming a deficit at 30 Hz with electroencephalography (EEG), we applied 20 minutes of transcranial alternating current stimulation (tACS) to transiently restore this activity in adults with dyslexia. The intervention significantly improved phonological processing and reading accuracy as measured immediately after tACS. The effect occurred selectively for a 30-Hz stimulation in the dyslexia group. Importantly, we observed that the focal intervention over the left auditory cortex also decreased 30-Hz activity in the right superior temporal cortex, resulting in reinstating a left dominance for the oscillatory response. These findings establish a causal role of neural oscillations in phonological processing and offer solid neurophysiological grounds for a potential correction of low-gamma anomalies and for alleviating the phonological deficit in dyslexia.
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Affiliation(s)
| | - Johanna Nicolle
- Department of Neuroscience, University of Geneva, Geneva, Switzerland
| | | | - Luc H. Arnal
- Department of Neuroscience, University of Geneva, Geneva, Switzerland
- Institut de l’Audition, Institut Pasteur, INSERM, Paris, France
| | - John P. Donoghue
- Brown University, Providence, Rhode Island, United States of America
| | - Anne-Lise Giraud
- Department of Neuroscience, University of Geneva, Geneva, Switzerland
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15
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Sammler D, Elmer S. Advances in the Neurocognition of Music and Language. Brain Sci 2020; 10:brainsci10080509. [PMID: 32748810 PMCID: PMC7464495 DOI: 10.3390/brainsci10080509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 07/30/2020] [Indexed: 11/16/2022] Open
Abstract
Neurocomparative music and language research has seen major advances over the past two decades. The goal of this Special Issue “Advances in the Neurocognition of Music and Language” was to showcase the multiple neural analogies between musical and linguistic information processing, their entwined organization in human perception and cognition and to infer the applicability of the combined knowledge in pedagogy and therapy. Here, we summarize the main insights provided by the contributions and integrate them into current frameworks of rhythm processing, neuronal entrainment, predictive coding and cognitive control.
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Affiliation(s)
- Daniela Sammler
- Otto Hahn Group Neural Bases of Intonation in Speech and Music, Max Planck Institute for Human Cognitive and Brain Sciences, 04103 Leipzig, Germany
- Correspondence: (D.S.); (S.E.)
| | - Stefan Elmer
- Auditory Research Group Zurich (ARGZ), Division Neuropsychology, Institute of Psychology, University of Zurich, 8050 Zurich, Switzerland
- Correspondence: (D.S.); (S.E.)
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16
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Cancer A, Bonacina S, Antonietti A, Salandi A, Molteni M, Lorusso ML. The Effectiveness of Interventions for Developmental Dyslexia: Rhythmic Reading Training Compared With Hemisphere-Specific Stimulation and Action Video Games. Front Psychol 2020; 11:1158. [PMID: 32581961 PMCID: PMC7283807 DOI: 10.3389/fpsyg.2020.01158] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/05/2020] [Indexed: 01/18/2023] Open
Abstract
Developmental dyslexia is a very common learning disorder causing an impairment in reading ability. Although the core deficit underlying dyslexia is still under debate, significant agreement is reached in the literature that dyslexia is related to a specific deficit in the phonological representation of speech sounds. Many studies also reported an association between reading skills and music. These findings suggest that interventions aimed at enhancing basic auditory skills of children with DD may impact reading abilities. However, music education alone failed to produce improvements in reading skills comparable to those resulting from traditional intervention methods for DD. Therefore, a computer-assisted intervention method, called Rhythmic Reading Training (RRT), which combines sublexical reading exercises with rhythm processing, was implemented. The purpose of the present study was to compare the effectiveness of RRT and that of an intervention resulting from the combination of two yet validated treatments for dyslexia, namely, Bakker’s Visual Hemisphere-Specific Stimulation (VHSS) and the Action Video Game Training (AVG). Both interventions, administered for 13 h over 9 days, significantly improved reading speed and accuracy of a group of Italian students with dyslexia aged 8–14. However, each intervention program produced improvements that were more evident in specific reading parameters: RRT was more effective for improvement of pseudoword reading speed, whereas VHSS + AVG was more effective in increasing general reading accuracy. Such different effects were found to be associated with different cognitive mechanisms, namely, phonological awareness for RRT and rapid automatized naming for VHSS + AVG, thus explaining the specific contribution of each training approach. Clinical Trial registration: ClinicalTrials.gov NCT02791841.
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Affiliation(s)
- Alice Cancer
- Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy
| | - Silvia Bonacina
- Department of Psychology, Catholic University of the Sacred Heart, Milan, Italy.,Auditory Neuroscience Laboratory, Northwestern University, Evanston, IL, United States.,Department of Communication Sciences and Disorders, Northwestern University, Evanston, IL, United States
| | | | - Antonio Salandi
- Unit of Child Psychopathology, Scientific Institute IRCCS 'Eugenio Medea', Bosisio Parini, Italy
| | - Massimo Molteni
- Unit of Child Psychopathology, Scientific Institute IRCCS 'Eugenio Medea', Bosisio Parini, Italy
| | - Maria Luisa Lorusso
- Unit of Child Psychopathology, Scientific Institute IRCCS 'Eugenio Medea', Bosisio Parini, Italy
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Bidelman GM, Walker B. Plasticity in auditory categorization is supported by differential engagement of the auditory-linguistic network. Neuroimage 2019; 201:116022. [PMID: 31310863 DOI: 10.1016/j.neuroimage.2019.116022] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/30/2019] [Accepted: 07/12/2019] [Indexed: 12/21/2022] Open
Abstract
To construct our perceptual world, the brain categorizes variable sensory cues into behaviorally-relevant groupings. Categorical representations are apparent within a distributed fronto-temporo-parietal brain network but how this neural circuitry is shaped by experience remains undefined. Here, we asked whether speech and music categories might be formed within different auditory-linguistic brain regions depending on listeners' auditory expertise. We recorded EEG in highly skilled (musicians) vs. less experienced (nonmusicians) perceivers as they rapidly categorized speech and musical sounds. Musicians showed perceptual enhancements across domains, yet source EEG data revealed a double dissociation in the neurobiological mechanisms supporting categorization between groups. Whereas musicians coded categories in primary auditory cortex (PAC), nonmusicians recruited non-auditory regions (e.g., inferior frontal gyrus, IFG) to generate category-level information. Functional connectivity confirmed nonmusicians' increased left IFG involvement reflects stronger routing of signal from PAC directed to IFG, presumably because sensory coding is insufficient to construct categories in less experienced listeners. Our findings establish auditory experience modulates specific engagement and inter-regional communication in the auditory-linguistic network supporting categorical perception. Whereas early canonical PAC representations are sufficient to generate categories in highly trained ears, less experienced perceivers broadcast information downstream to higher-order linguistic brain areas (IFG) to construct abstract sound labels.
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Affiliation(s)
- Gavin M Bidelman
- Institute for Intelligent Systems, University of Memphis, Memphis, TN, USA; School of Communication Sciences & Disorders, University of Memphis, Memphis, TN, USA; University of Tennessee Health Sciences Center, Department of Anatomy and Neurobiology, Memphis, TN, USA.
| | - Breya Walker
- Institute for Intelligent Systems, University of Memphis, Memphis, TN, USA; Department of Psychology, University of Memphis, Memphis, TN, USA; Department of Mathematical Sciences, University of Memphis, Memphis, TN, USA
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