Neural patterns of word processing differ in children with dyslexia and isolated spelling deficit
Neural patterns of word processing differ in children with dyslexia and isolated spelling deficit
StatusVoR
Alternative title
Authors
Dębska, Agnieszka
Banfi, Chiara
Chyl, Katarzyna
Dzięgiel-Fivet, Gabriela
Kacprzak, Agnieszka
Łuniewska, Magdalena
Plewko, Joanna
Grabowska, Anna
Landerl, Karin
Jednoróg, Katarzyna
Monograph
Monograph (alternative title)
Date
2021-03-23
Publisher
Journal title
Brain Structure and Function
Issue
5
Volume
226
Pages
Pages
1467–1478
ISSN
1863-2653
ISSN of series
Access date
2021-03-23
Abstract PL
Abstract EN
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 (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.
Abstract other
Keywords PL
Keywords EN
Reading
Spelling
Speech–print convergence
Dyslexia
Isolated spelling deficit
FMRI
Spelling
Speech–print convergence
Dyslexia
Isolated spelling deficit
FMRI
Keywords other
Exhibition title
Place of exhibition (institution)
Exhibition curator
Type
License type
Funder
Time range from
Time range to
Contact person name
Related publication
Related publication
Grant/project name
Collections
Views
9Acquisition Date30.03.2025
Downloads
7Acquisition Date30.03.2025
Altmetrics©
Dimensions
Google Scholar
