کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6023749 | 1580876 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neural basis of phonological awareness in beginning readers with familial risk of dyslexia-Results from shallow orthography
ترجمه فارسی عنوان
مبانی عصبی آگاهی واج شناختی در شروع خوانندگان با خطر خانوادگی در نارساخوان - نتایج از شخصیت های ضخیم
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب شناختی
چکیده انگلیسی
Phonological processing ability is a key factor in reading acquisition, predicting its later success or causing reading problems when it is weakened. Our aim here was to establish the neural correlates of auditory word rhyming (a standard phonological measure) in 102 young children with (FHDÂ +) and without familial history of dyslexia (FHDÂ â) in a shallow orthography (i.e. Polish). Secondly, in order to gain a deeper understanding on how schooling shapes brain activity to phonological awareness, a comparison was made of children who had had formal literacy instruction for several months (in first grade) and those who had not yet had any formal instruction in literacy (in kindergarten). FHDÂ + children compared to FHDÂ â children in the first grade scored lower in an early print task and showed longer reaction times in the in-scanner rhyme task. No behavioral differences between FHDÂ + and FHDÂ â were found in the kindergarten group. On the neuronal level, overall familial risk was associated with reduced activation in the bilateral temporal, tempo-parietal and inferior temporal-occipital regions, as well as the bilateral inferior and middle frontal gyri. Subcortically, hypoactivation was found in the bilateral thalami, caudate, and right putamen in FHDÂ +. A main effect of the children's grade was present only in the left inferior frontal gyrus, where reduced activation for rhyming was shown in first-graders. Several regions in the ventral occipital cortex, including the fusiform gyrus, and in the right middle frontal and postcentral gyri, displayed an interaction between familial risk and grade. The present results show strong influence of familial risk that may actually increase with formal literacy instruction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NeuroImage - Volume 132, 15 May 2016, Pages 406-416
Journal: NeuroImage - Volume 132, 15 May 2016, Pages 406-416
نویسندگان
Agnieszka DÄbska, Magdalena Åuniewska, Katarzyna Chyl, Anna Banaszkiewicz, Agata Å»elechowska, Marek Wypych, Artur Marchewka, Kenneth R. Pugh, Katarzyna Jednoróg,