دانلود مقاله ISI انگلیسی شماره 75868
عنوان فارسی مقاله

ارتباط الکتروفیزیولوژیک پردازش سریع شنوایی و زبانی در نوجوانان مبتلا به اختلال زبان خاص

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
75868 2010 20 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Electrophysiological correlates of rapid auditory and linguistic processing in adolescents with specific language impairment
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Brain and Language, Volume 115, Issue 3, December 2010, Pages 162–181

کلمات کلیدی
پردازش شنیداری؛ ناهنجاری معنایی؛ اختلال زبان خاص؛ ERPs؛ نوجوانان؛ افعال؛ تکواژی؛ واژگانی؛ معنایی
پیش نمایش مقاله
پیش نمایش مقاله ارتباط الکتروفیزیولوژیک پردازش سریع شنوایی و زبانی در نوجوانان مبتلا به اختلال زبان خاص

چکیده انگلیسی

Brief tonal stimuli and spoken sentences were utilized to examine whether adolescents (aged 14;3–18;1) with specific language impairments (SLI) exhibit atypical neural activity for rapid auditory processing of non-linguistic stimuli and linguistic processing of verb-agreement and semantic constraints. Further, we examined whether the behavioral and electrophysiological indices for rapid auditory processing were correlated with those for linguistic processing. Fifteen adolescents with SLI and 15 adolescents with normal language met strict criteria for displaying consistent diagnoses from kindergarten through the eighth grade. The findings provide evidence that auditory processing for non-linguistic stimuli is atypical in a significant number of adolescents with SLI compared to peers with normal language and indicate that reduced efficiency in auditory processing in SLI is more vulnerable to rapid rates (200 ms ISI) of stimuli presentation (indexed by reduced accuracy, a tendency for longer RTs, reduced N100 over right anterior sites, and reduced amplitude P300). Many adolescents with SLI displayed reduced behavioral accuracy for detecting verb-agreement violations and semantic anomalies, along with less robust P600s elicited by verb-agreement violations. The results indicate that ERPs elicited by morphosyntactic aspects of language processing are atypical in many adolescents with SLI. Additionally, correlational analyses between behavioral and electrophysiological indices of processing non-linguistic stimuli and verb-agreement violations suggest that the integrity of neural functions for auditory processing may only account for a small proportion of the variance in morphosyntactic processing in some adolescents.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.