About this Research Topic
Recently, one possible conceptual framework exploring how atypical temporal sampling of auditory information could underpin the phonological (sound structure) deficit found in dyslexia across languages was proposed (Goswami, 2011). Goswami argued that a primary problem with auditory temporal sampling could cause the atypical development of speech-based representations from infancy, leading to the phonological difficulties that children with dyslexia experience in every language so far studied. She also argued that atypical auditory oscillatory function would have knock-on effects for visual and cross-modal processing in dyslexia, thereby affecting auditory attention and visual processing. Logically, it is also possible that the primary sampling difficulty in dyslexia could be visual, with knock-on affects for auditory processing, or that the primary problem could lie with a certain frequency band or bands, and have cross-modal effects. Further, it is possible that hierarchical cross-frequency coupling of oscillations is deficient in dyslexia. In oscillatory hierarchies, the activity of faster frequencies related to spike timing can be modulated by the activity of slower frequencies, which act to align neuronal excitability with high-information sections of the input. Atypical cross-frequency coupling of auditory-visual information could for example impair both visual and auditory attention in dyslexia. On the other hand, a deficit of this nature would be expected to have developmental effects on cognitive systems other than reading, and so consideration of how any postulated oscillatory difficulty would affect children’s developmental trajectories is absolutely critical for successful theory development.
Here we welcome the participation of original research and review articles relating oscillatory processes to developmental dyslexia which take into account developmental trajectories. We encourage in particular articles based on sensory processing and attention that address the major conceptual issues outlined above.
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