Delta EEG activity as a marker of dysfunctional linguistic processing in developmental dyslexia.

摘要: The present study used delta EEG band to test the hypothesis of a cerebral maturational delay and functional altered asymmetry for phonological processing in dyslexic children. A group 14 children with dyslexia 28 matched controls participated linguistic paradigm which same words were processed three tasks: phonological, semantic, orthographic. Delta amplitude was computed as an index cortical inhibition four different phases word processing. In anterior sites, showed left activation (reduced delta) during task bilateral other two tasks. Conversely, greater overall amplitude, indexing maturation language laterality pattern. they had larger (inhibition frontal locations) smaller posterior (activation sites silent controls). Results support deficit developmental validity clinical measure laterality.