Abstract：
:Individuals with developmental dyslexia are often impaired in their ability to process certain linguistic and even basic non-linguistic auditory signals. Recent investigations report conflicting findings regarding impaired low-level binaural detection mechanisms associated with dyslexia. Binaural impairment has been hypothesized to stem from a general low-level processing disorder for temporally fine sensory stimuli. Here we use a new behavioral paradigm to address this issue. We compared the response times of dyslexic listeners and their matched controls in a tone-in-noise detection task. The tonal signals were either Huggins Pitch (HP), a stimulus requiring binaural processing to elicit a pitch percept, or a pure tone-perceptually similar but physically very different signals. The results showed no difference between the two groups specific to the processing of HP and thus no evidence for a binaural impairment in dyslexia. However, dyslexic subjects exhibited a general difficulty in extracting tonal objects from background noise, manifested by a globally delayed detection speed.
journal_name
Brain Langjournal_title
Brain and languageauthors
Chait M,Eden G,Poeppel D,Simon JZ,Hill DF,Flowers DLdoi
10.1016/j.bandl.2006.07.001subject
Has Abstractpub_date
2007-07-01 00:00:00pages
80-90issue
1eissn
0093-934Xissn
1090-2155pii
S0093-934X(06)00241-0journal_volume
102pub_type
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