Impaired sensitivity to dynamic stimuli in poor readers of a regular orthography  

Oleh:

Talcott, Joel B. ; Gram, Aashild ; Ingelghem, Mieke Van ; Witton, Caroline ; Stein, John F. ; Toennessen, Finn Egil

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Brain and Language (Full Text) vol. 87 no. 2 (2003), page 259-266.
Topik: Reading; Dyslexia; Temporal processing; Auditory frequency modulation; Visual coherent motion
Fulltext: 87_02_Talcott.pdf (153.7KB)

Isi artikel

The mappings from grapheme to phoneme are much less consistent in English than they are for most other languages. Therefore, the differences found between English-speaking dyslexics and controls on sensory measures of temporal processing might be related more to the irregularities of English orthography than to a general deficit affecting reading ability in all languages. However, here we show that poor readers of Norwegian, a language with a relatively regular orthography, are less sensitive than controls to dynamic visual and auditory stimuli. Consistent with results from previous studies of English-readers, detection thresholds for visual motion and auditory frequency modulation (FM) were significantly higher in 19 poor readers of Norwegian compared to 22 control readers of the same age. Over two-thirds (68.4%) of the children identified as poor readers were less sensitive than controls to either or both of the visual coherent motion or auditory 2Hz FM stimuli.

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