Prereader to beginning reader: changes induced by reading acquisition in print and speech brain networks / Katarzyna CHYL in Journal of Child Psychology and Psychiatry, 59-1 (January 2018)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 59-1 (January 2018) . - p.76-87 Titre : Prereader to beginning reader: changes induced by reading acquisition in print and speech brain networks Type de document : texte imprimé Auteurs : Katarzyna CHYL, Auteur ; Bartosz KOSSOWSKI, Auteur ; Agnieszka DĘBSKA, Auteur ; Magdalena ŁUNIEWSKA, Auteur ; Anna BANASZKIEWICZ, Auteur ; Agata ŻELECHOWSKA, Auteur ; Stephen J. FROST, Auteur ; William Einar MENCL, Auteur ; Marek WYPYCH, Auteur ; Artur MARCHEWKA, Auteur ; Kenneth R. PUGH, Auteur ; Katarzyna JEDNORÓG, Auteur Article en page(s) : p.76-87 Langues : Anglais (eng) Mots-clés : fMRI  literacy  prereaders  reading acquisition  print-speech convergence Index. décimale : PER Périodiques Résumé : Background Literacy acquisition is a demanding process that induces significant changes in the brain, especially in the spoken and written language networks. Nevertheless, large-scale paediatric fMRI studies are still limited. Methods We analyzed fMRI data to show how individual differences in reading performance correlate with brain activation for speech and print in 111 children attending kindergarten or first grade and examined group differences between a matched subset of emergent-readers and prereaders. Results Across the entire cohort, individual differences analysis revealed that reading skill was positively correlated with the magnitude of activation difference between words and symbol strings in left superior temporal, inferior frontal and fusiform gyri. Group comparisons of the matched subset of pre- and emergent-readers showed higher activity for emergent-readers in left inferior frontal, precentral, and postcentral gyri. Individual differences in activation for natural versus vocoded speech were also positively correlated with reading skill, primarily in the left temporal cortex. However, in contrast to studies on adult illiterates, group comparisons revealed higher activity in prereaders compared to readers in the frontal lobes. Print-speech coactivation was observed only in readers and individual differences analyses revealed a positive correlation between convergence and reading skill in the left superior temporal sulcus. Conclusions These results emphasise that a child's brain undergoes several modifications to both visual and oral language systems in the process of learning to read. They also suggest that print-speech convergence is a hallmark of acquiring literacy. En ligne : http://dx.doi.org/10.1111/jcpp.12774 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=327 [article] Prereader to beginning reader: changes induced by reading acquisition in print and speech brain networks [texte imprimé] / Katarzyna CHYL, Auteur ; Bartosz KOSSOWSKI, Auteur ; Agnieszka DĘBSKA, Auteur ; Magdalena ŁUNIEWSKA, Auteur ; Anna BANASZKIEWICZ, Auteur ; Agata ŻELECHOWSKA, Auteur ; Stephen J. FROST, Auteur ; William Einar MENCL, Auteur ; Marek WYPYCH, Auteur ; Artur MARCHEWKA, Auteur ; Kenneth R. PUGH, Auteur ; Katarzyna JEDNORÓG, Auteur . - p.76-87. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 59-1 (January 2018) . - p.76-87 Mots-clés : fMRI  literacy  prereaders  reading acquisition  print-speech convergence Index. décimale : PER Périodiques Résumé : Background Literacy acquisition is a demanding process that induces significant changes in the brain, especially in the spoken and written language networks. Nevertheless, large-scale paediatric fMRI studies are still limited. Methods We analyzed fMRI data to show how individual differences in reading performance correlate with brain activation for speech and print in 111 children attending kindergarten or first grade and examined group differences between a matched subset of emergent-readers and prereaders. Results Across the entire cohort, individual differences analysis revealed that reading skill was positively correlated with the magnitude of activation difference between words and symbol strings in left superior temporal, inferior frontal and fusiform gyri. Group comparisons of the matched subset of pre- and emergent-readers showed higher activity for emergent-readers in left inferior frontal, precentral, and postcentral gyri. Individual differences in activation for natural versus vocoded speech were also positively correlated with reading skill, primarily in the left temporal cortex. However, in contrast to studies on adult illiterates, group comparisons revealed higher activity in prereaders compared to readers in the frontal lobes. Print-speech coactivation was observed only in readers and individual differences analyses revealed a positive correlation between convergence and reading skill in the left superior temporal sulcus. Conclusions These results emphasise that a child's brain undergoes several modifications to both visual and oral language systems in the process of learning to read. They also suggest that print-speech convergence is a hallmark of acquiring literacy. En ligne : http://dx.doi.org/10.1111/jcpp.12774 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=327

Properties of white matter tract diffusivity in children with developmental dyslexia and comorbid attention deficit/hyperactivity disorder / Ryan J. SLABY in Journal of Neurodevelopmental Disorders, 15 (2023)  

Public ISBD [article]  inJournal of Neurodevelopmental Disorders > 15 (2023) Titre : Properties of white matter tract diffusivity in children with developmental dyslexia and comorbid attention deficit/hyperactivity disorder Type de document : texte imprimé Auteurs : Ryan J. SLABY, Auteur ; C Nikki ARRINGTON, Auteur ; Jeffrey MALINS, Auteur ; Rose A. SEVCIK, Auteur ; Kenneth R. PUGH, Auteur ; Robin MORRIS, Auteur Langues : Anglais (eng) Mots-clés : White Matter/physiopathology  Dyslexia/complications/physiopathology  Attention Deficit Disorder with Hyperactivity/complications/physiopathology  Analysis of Variance  Attention  Humans  Child  Reading  Executive Function  Adhd  Comorbidity  Dti  Dyslexia  Fa  Slf  White matter Index. décimale : PER Périodiques Résumé : BACKGROUND: Developmental dyslexia (DD) and attention deficit/hyperactivity disorder (ADHD) are highly comorbid neurodevelopmental disorders. Individuals with DD or ADHD have both been shown to have deficits in white matter tracts associated with reading and attentional control networks. However, white matter diffusivity in individuals comorbid with both DD and ADHD (DD + ADHD) has not been specifically explored. METHODS: Participants were 3(rd) and 4(th) graders (age range = 7 to 11 years; SD = 0.69) from three diagnostic groups ((DD (n = 40), DD + ADHD (n = 22), and typical developing (TD) (n = 20)). Behavioral measures of reading and attention alongside measures of white matter diffusivity were collected for all participants. RESULTS: DD + ADHD and TD groups differed in mean fractional anisotropy (FA) for the left and right Superior Longitudinal Fasciculus (SLF)-Parietal Terminations and SLF-Temporal Terminations. Mean FA for the DD group across these SLF tracts fell between the lower DD + ADHD and higher TD averages. No differences in mean diffusivity nor significant brain-behavior relations were found. CONCLUSIONS: Findings suggest that WM diffusivity in the SLF increases along a continuum across DD + ADHD, DD, and TD. En ligne : https://dx.doi.org/10.1186/s11689-023-09495-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=575 [article] Properties of white matter tract diffusivity in children with developmental dyslexia and comorbid attention deficit/hyperactivity disorder [texte imprimé] / Ryan J. SLABY, Auteur ; C Nikki ARRINGTON, Auteur ; Jeffrey MALINS, Auteur ; Rose A. SEVCIK, Auteur ; Kenneth R. PUGH, Auteur ; Robin MORRIS, Auteur. Langues : Anglais (eng) in Journal of Neurodevelopmental Disorders > 15 (2023) Mots-clés : White Matter/physiopathology  Dyslexia/complications/physiopathology  Attention Deficit Disorder with Hyperactivity/complications/physiopathology  Analysis of Variance  Attention  Humans  Child  Reading  Executive Function  Adhd  Comorbidity  Dti  Dyslexia  Fa  Slf  White matter Index. décimale : PER Périodiques Résumé : BACKGROUND: Developmental dyslexia (DD) and attention deficit/hyperactivity disorder (ADHD) are highly comorbid neurodevelopmental disorders. Individuals with DD or ADHD have both been shown to have deficits in white matter tracts associated with reading and attentional control networks. However, white matter diffusivity in individuals comorbid with both DD and ADHD (DD + ADHD) has not been specifically explored. METHODS: Participants were 3(rd) and 4(th) graders (age range = 7 to 11 years; SD = 0.69) from three diagnostic groups ((DD (n = 40), DD + ADHD (n = 22), and typical developing (TD) (n = 20)). Behavioral measures of reading and attention alongside measures of white matter diffusivity were collected for all participants. RESULTS: DD + ADHD and TD groups differed in mean fractional anisotropy (FA) for the left and right Superior Longitudinal Fasciculus (SLF)-Parietal Terminations and SLF-Temporal Terminations. Mean FA for the DD group across these SLF tracts fell between the lower DD + ADHD and higher TD averages. No differences in mean diffusivity nor significant brain-behavior relations were found. CONCLUSIONS: Findings suggest that WM diffusivity in the SLF increases along a continuum across DD + ADHD, DD, and TD. En ligne : https://dx.doi.org/10.1186/s11689-023-09495-9 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=575

---

1 (1 - 2 / 2) Par page : 25 50 100 200