منابع مشابه
The critical period
What is the critical period? Also known as the sensitive period, the critical period is a time during early postnatal life when the development and maturation of functional properties of the brain, its ‘plasticity’, is strongly dependent on experience or environmental influences. The concept of a critical period therefore plays an important role in the ageold nature versus nurture debate — to w...
متن کاملCritical period regulation.
Neuronal circuits are shaped by experience during critical periods of early postnatal life. The ability to control the timing, duration, and closure of these heightened levels of brain plasticity has recently become experimentally accessible, especially in the developing visual system. This review summarizes our current understanding of known critical periods across several systems and species....
متن کاملCHILD DEVELOPMENT AND IRON DEFICIENCY Early Action Is Critical for Healthy Mental, Physical, and Social Development
o examine the role of iron status in the development of children, the Office of Health and Nutrition, U.S. Agency for International Development, through the Opportunities for Micronutrient Intervention (OMNI) Project and the Partnership for Child Development, University of Oxford, convened a group of concerned scientists and policy makers in Oxford, United Kingdom, on September 16–17, 1996. The...
متن کاملdetermination of some physical and mechanical properties red bean
چکیده: در این تحقیق، برخی خواص فیزیکی و مکانیکی لوبیا قرمز به-صورت تابعی از محتوی رطوبت بررسی شد. نتایج نشان داد که رطوبت بر خواص فیزیکی لوبیا قرمز شامل طول، عرض، ضخامت، قطر متوسط هندسی، قطر متوسط حسابی، سطح تصویر شده، حجم، چگالی توده، تخلخل، وزن هزار دانه و زاویه ی استقرار استاتیکی در سطح احتمال 1 درصد اثر معنی داری دارد. به طوری که با افزایش رطوبت از 54/7 به 12 درصد بر پایه خشک طول، عرض، ضخام...
15 صفحه اولAutism: A “Critical Period” Disorder?
Cortical circuits in the brain are refined by experience during critical periods early in postnatal life. Critical periods are regulated by the balance of excitatory and inhibitory (E/I) neurotransmission in the brain during development. There is now increasing evidence of E/I imbalance in autism, a complex genetic neurodevelopmental disorder diagnosed by abnormal socialization, impaired commun...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Learning Disabilities
سال: 1969
ISSN: 0022-2194,1538-4780
DOI: 10.1177/002221946900200304