کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5735868 1613098 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cortical specialisation to social stimuli from the first days to the second year of life: A rural Gambian cohort
ترجمه فارسی عنوان
تخصص کورتیکتیو به محرک های اجتماعی از روزهای اول تا سال دوم زندگی: یک گروه همجوار روستایی گامبیا
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
چکیده انگلیسی

Brain and nervous system development in human infants during the first 1000 days (conception to two years of age) is critical, and compromised development during this time (such as from under nutrition or poverty) can have life-long effects on physical growth and cognitive function. Cortical mapping of cognitive function during infancy is poorly understood in resource-poor settings due to the lack of transportable and low-cost neuroimaging methods. Having established a signature cortical response to social versus non-social visual and auditory stimuli in infants from 4 to 6 months of age in the UK, here we apply this functional Near Infrared Spectroscopy (fNIRS) paradigm to investigate social responses in infants from the first postnatal days to the second year of life in two contrasting environments: rural Gambian and urban UK. Results reveal robust, localized, socially selective brain responses from 9 to 24 months of life to both the visual and auditory stimuli. In contrast at 0-2 months of age infants exhibit non-social auditory selectivity, an effect that persists until 4-8 months when we observe a transition to greater social stimulus selectivity. These findings reveal a robust developmental curve of cortical specialisation over the first two years of life.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Developmental Cognitive Neuroscience - Volume 25, June 2017, Pages 92-104
نویسندگان
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