Decreased Sensitivity to Phonemic Mismatch in Spoken Word Processing in Adult Developmental Dyslexia  

Oleh:

Janse, Esther ; Bree, Elise de ; Brouwer, Susanne

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Journal of Psycholinguistics Research =>ada di SpringerLink 1972(vol.1) - Mutakhir; PROQUEST vol. 39 no. 6 (Dec. 2010), page 523-539.
Topik: Dyslexia · Lexical activation · Spoken word recognition · Speech processing · Phonological deficit
Fulltext: vol. 39 issue 6 December 2010. p. 523 - 539.pdf (311.51KB)

Isi artikel

Initial lexical activation in typical populations is a direct reflection of the goodness of fit between the presented stimulus and the intended target. In this study, lexical activation was investigated upon presentation of polysyllabic pseudowords (such as procodile for crocodile) for the atypical population of dyslexic adults to see to what extent mismatching phonemic information affects lexical activation in the face of overwhelming support for one specific lexical candidate. Results of an auditory lexical decision task showed that sensitivity to phonemic mismatch was less in the dyslexic population, compared to the respective control group. However, the dyslexic participants were outperformed by their controls only for word-initial mismatches. It is argued that a subtle speech decoding deficit affects lexical activation levels and makes spoken word processing less robust against distortion.

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