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Too little or too much? Parafoveal preview benefits and parafoveal load costs in dyslexic adults
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Orientador(es)
Resumo(s)
Two different forms of parafoveal dysfunction have been hypothesized as core
deficits of dyslexic individuals: reduced parafoveal preview benefits (Btoo little parafovea^)
and increased costs of parafoveal load (Btoo much parafovea^).We tested both hypotheses in a
single eye-tracking experiment using a modified serial rapid automatized naming (RAN) task.
Comparisons between dyslexic and non-dyslexic adults showed reduced parafoveal preview
benefits in dyslexics, without increased costs of parafoveal load. Reduced parafoveal preview
benefits were observed in a naming task, but not in a silent letter-finding task, indicating that the parafoveal dysfunction may be consequent to the overload with extracting phonological
information from orthographic input. Our results suggest that dyslexics’ parafoveal dysfunction
is not based on strict visuo-attentional factors, but nevertheless they stress the importance
of extra-phonological processing. Furthermore, evidence of reduced parafoveal preview benefits
in dyslexia may help understand why serial RAN is an important reading predictor in
adulthood.
Descrição
Palavras-chave
Dyslexia Eye-tracking Parafovea Reading predictors Serial RAN
Contexto Educativo
Citação
Silva, S., Faísca, L., Araújo, S., Casaca, L., Carvalho, L., Petersson, K. M., & Reis, A. (2016). Too little or too much? Parafoveal preview benefits and parafoveal load costs in dyslexic adults. Annals of Dyslexia, 66(2), 187-201. https://doi.org/10.1007/s11881-015-0113-z
Editora
Springer