Neural patterns of word processing differ in children with dyslexia and isolated spelling deficit

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cris.lastimport.scopus2025-03-29T04:13:22Z
dc.abstract.enThere is an ongoing debate concerning the extent to which deficits in reading and spelling share cognitive components and whether they rely, in a similar fashion, on sublexical and lexical pathways of word processing. The present study investigates whether the neural substrates of word processing differ in children with various patterns of reading and spelling deficits. Using functional magnetic resonance imaging, we compared written and auditory processing in three groups of 9–13-year olds (N = 104): (1) with age-adequate reading and spelling skills; (2) with reading and spelling deficits (i.e., dyslexia); (3) with isolated spelling deficits but without reading deficits. In visual word processing, both deficit groups showed hypoactivations in the posterior superior temporal cortex compared to typical readers and spellers. Only children with dyslexia exhibited hypoactivations in the ventral occipito-temporal cortex compared to the two groups of typical readers. This is the result of an atypical pattern of higher activity in the occipito-temporal cortex for non-linguistic visual stimuli than for words, indicating lower selectivity. The print–speech convergence was reduced in the two deficit groups. Impairments in lexico-orthographic regions in a reading-based task were associated primarily with reading deficits, whereas alterations in the sublexical word processing route could be considered common for both reading and spelling deficits. These findings highlight the partly distinct alterations of the language network related to reading and spelling deficits.
dc.affiliationFaculty of Psychology
dc.affiliationInstytut Psychologii
dc.contributor.authorDębska, Agnieszka
dc.contributor.authorBanfi, Chiara
dc.contributor.authorChyl, Katarzyna
dc.contributor.authorDzięgiel-Fivet, Gabriela
dc.contributor.authorKacprzak, Agnieszka
dc.contributor.authorŁuniewska, Magdalena
dc.contributor.authorPlewko, Joanna
dc.contributor.authorGrabowska, Anna
dc.contributor.authorLanderl, Karin
dc.contributor.authorJednoróg, Katarzyna
dc.date.access2021-03-23
dc.date.accessioned2024-10-24T12:25:43Z
dc.date.available2024-10-24T12:25:43Z
dc.date.created2021-03-07
dc.date.issued2021-03-23
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>There is an ongoing debate concerning the extent to which deficits in reading and spelling share cognitive components and whether they rely, in a similar fashion, on sublexical and lexical pathways of word processing. The present study investigates whether the neural substrates of word processing differ in children with various patterns of reading and spelling deficits. Using functional magnetic resonance imaging, we compared written and auditory processing in three groups of 9–13-year olds (<jats:italic>N</jats:italic> = 104): (1) with age-adequate reading and spelling skills; (2) with reading and spelling deficits (i.e., dyslexia); (3) with isolated spelling deficits but without reading deficits. In visual word processing, both deficit groups showed hypoactivations in the posterior superior temporal cortex compared to typical readers and spellers. Only children with dyslexia exhibited hypoactivations in the ventral occipito-temporal cortex compared to the two groups of typical readers. This is the result of an atypical pattern of higher activity in the occipito-temporal cortex for non-linguistic visual stimuli than for words, indicating lower selectivity. The print–speech convergence was reduced in the two deficit groups. Impairments in lexico-orthographic regions in a reading-based task were associated primarily with reading deficits, whereas alterations in the sublexical word processing route could be considered common for both reading and spelling deficits. These findings highlight the partly distinct alterations of the language network related to reading and spelling deficits.</jats:p>
dc.description.accesstimeat_publication
dc.description.issue5
dc.description.physical1467–1478
dc.description.versionfinal_published
dc.description.volume226
dc.identifier.doi10.1007/s00429-021-02255-2
dc.identifier.eissn1863-2661
dc.identifier.issn1863-2653
dc.identifier.urihttps://share.swps.edu.pl/handle/swps/1036
dc.identifier.weblinkhttps://pubmed.ncbi.nlm.nih.gov/33761000/
dc.languageen
dc.pbn.affiliationpsychologia
dc.rightsCC-BY
dc.rights.questionYes_rights
dc.share.articleOTHER
dc.subject.enReading
dc.subject.enSpelling
dc.subject.enSpeech–print convergence
dc.subject.enDyslexia
dc.subject.enIsolated spelling deficit
dc.subject.enFMRI
dc.swps.sciencecloudnosend
dc.titleNeural patterns of word processing differ in children with dyslexia and isolated spelling deficit
dc.title.journalBrain Structure and Function
dc.typeJournalArticle
dspace.entity.typeArticle