کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10463149 | 925105 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Accentuate or repeat? Brain signatures of developmental periods in infant word recognition
ترجمه فارسی عنوان
تکرار یا تکرار کنید؟ امضاهای مغز دوره های رشد در شناخت نوزادان
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کلمات کلیدی
به رسمیت شناختن کلمه تمرکز تکرار، پتانسیل مغز مرتبط با رویداد،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب رفتاری
چکیده انگلیسی
Language acquisition has long been discussed as an interaction between biological preconditions and environmental input. This general interaction seems particularly salient in lexical acquisition, where infants are already able to detect unknown words in sentences at 7 months of age, guided by phonological and statistical information in the speech input. While this information results from the linguistic structure of a given language, infants also exploit situational information, such as speakers' additional word accentuation and word repetition. The current study investigated the developmental trajectory of infants' sensitivity to these two situational input cues in word recognition. Testing infants at 6, 9, and 12 months of age, we hypothesized that different age groups are differentially sensitive to accentuation and repetition. In a familiarization-test paradigm, event-related brain potentials (ERPs) revealed age-related differences in infants' word recognition as a function of situational input cues: at 6 months infants only recognized previously accentuated words, at 9 months both accentuation and repetition played a role, while at 12 months only repetition was effective. These developmental changes are suggested to result from infants' advancing linguistic experience and parallel auditory cortex maturation. Our data indicate very narrow and specific input-sensitive periods in infant word recognition, with accentuation being effective prior to repetition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cortex - Volume 49, Issue 10, NovemberâDecember 2013, Pages 2788-2798
Journal: Cortex - Volume 49, Issue 10, NovemberâDecember 2013, Pages 2788-2798
نویسندگان
Claudia Männel, Angela D. Friederici,