Megumi Kagotani, Takashi Asakura, Hiromi Sakuma
[Factors related to plateauing among Yogo teachers]
[Nihon koshu eisei zasshi] Japanese journal of public health
visual attention va span defined amount distinct visual elements processed parallel multielement array recent empirical data theoretical accounts suggest va span deficit might contribute developmental dyslexia independently phonological disorder study hypothesis assessed two large samples french british dyslexic children whose performance compared chronologicalage matched control children results french study show va span capacities account substantial amount unique variance reading phonological skills british study replicates finding reveals contribution va span reading performance remains even controlling iq verbal fluency vocabulary single letter identification skills addition phoneme awareness studies dyslexic children exhibit selective phonological va span disorder overall findings support multifactorial view developmental dyslexia many cases developmental reading disorders seem due phonological disorders propose va span deficit likely alternative underlying cognitive deficit dyslexia