Brain activation in teenagers with isolated spelling disorder during tasks involving spelling assessment and comparison of pseudowords. fMRI study
PBN-AR
Instytucja
Instytut Fizjologii i Patologii Słuchu
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Brain and Development
ISSN
0387-7604
EISSN
Wydawca
DOI
URL
Rok publikacji
2013
Numer zeszytu
Strony od-do
786–793
Numer tomu
36(9)
Identyfikator DOI
Liczba arkuszy
Słowa kluczowe
angielski
Isolated spelling disorder
fMRI
Cerebellum
Frontal lobe
Automaticity of behaviour
Open access
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Inne
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Inna
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Razem z publikacją
Streszczenia
Język
angielski
Treść
Methods: The present study aimed at defining the specific traits of brain activation in teenagers with isolated spelling disorder in comparison with good spellers. fMRI examination was performed where the subject’s task involved taking a decision 1/whether the visually presented words were spelled correctly or not (the orthographic decision task), and 2/whether the two presented letters strings (pseudowords) were identical or not (the visual decision task). Half of the displays showing meaningful words with an orthographic difficulty contained pairs with both words spelled correctly, and half of them contained one misspelled word. Half of the pseudowords were identical, half of them were not. The participants of the study included 15 individuals with isolated spelling disorder and 14 good spellers, aged 13–15. Results: The results demonstrated that the essential differences in brain activation between teenagers with isolated spelling disorder and good spellers were found in the left inferior frontal gyrus, left medial frontal gyrus and right cerebellum posterior lobe, i.e. structures important for language processes, working memory and automaticity of behaviour. Conclusion: Spelling disorder is not only an effect of language dysfunction, it could be a symptom of difficulties in learning and automaticity of motor and visual shapes of written words, rapid information processing as well as automating use of orthographic lexicon.
Inne
System-identifier
PX-56b45b088106eb71826df4ae
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