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Developmental Dyslexia: A Temporal Sampling Framework| old_uid | 9295 |
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| title | Developmental Dyslexia: A Temporal Sampling Framework |
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| start_date | 2010/11/23 |
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| schedule | 15h45-17h |
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| online | no |
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| location_info | Conference room 163 |
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| summary | Neural coding by brain oscillations is a major focus in neuroscience with important implications for language research and thereby dyslexia. Here I argue that an oscillatory “temporal sampling” framework enables diverse data from developmental dyslexia to be drawn into an integrated theoretical framework. The core deficit in dyslexia is phonological. Impaired temporal sampling of speech by neuroelectric oscillations that encode incoming information at lower frequencies (Theta and Delta) may explain the perceptual and phonological difficulties with syllables, rhymes and rhythmic input found in dyslexia. These difficulties may be indexed by a perceptual insensitivity to rise times in the amplitude envelope, found in developmental dyslexia across languages. The temporal sampling framework thus proposes that the phonological difficulties in dyslexia originate in syllable parsing rather than phonetic perception, although developmentally syllable-level difficulties will also affect the phonetic level. A conceptual framework based on oscillations that entrain to sensory input also has implications for other sensory theories of dyslexia, offering opportunities for integrating a diverse and confusing experimental literature. |
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| responsibles | Zondervan |
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