Lookup NU author(s): Professor Christopher Petkov
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Despite dyslexia affecting a large number of people, the mechanisms underlying the disorder remain undetermined. There are numerous theories about the origins of dyslexia. Many of these relate dyslexia to low-level, sensory temporal processing deficits. Another group of theories attributes dyslexia to language-specific impairments. Here, we show that dyslexics perform worse than controls on an auditory perceptual grouping task. The results show differences in performance between the groups that depend on sound frequency and not solely on parameters related to temporal processing. Performance on this task suggests that dyslexics' deficits may result from impaired attentional control mechanisms. Such deficits are neither modality nor language-specific and may help to reconcile differences between theories of dyslexia.
Author(s): Petkov CI, O'Connor NK, Benmoshe G, Baynes K, Sutter ML
Publication type: Article
Publication status: Published
Journal: Cognitive Brain Research
Print publication date: 01/07/2005
ISSN (print): 0926-6410
ISSN (electronic): 1872-6348
PubMed id: 15993772
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