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Direct linkYirmiya, Nurit; Charman, Tony – Journal of Child Psychology and Psychiatry, 2010
Autism is one of the most heritable neurodevelopmental conditions and has an early onset, with symptoms being required to be present in the first 3 years of life in order to meet criteria for the "core" disorder in the classification systems. As such, the focus on identifying a prodrome over the past 20 years has been on pre-clinical…
Descriptors: Symptoms (Individual Disorders), Autism, Infants, Genetics
Naude, H.; Marx, J.; Pretorius, E.; Hislop-Esterhuyzen, N. – Early Child Development and Care, 2007
One of the important nutrients during pregnancy is vitamin A or related compounds called retinoids. Although it is well-known that vitamin A deficiency may be detrimental to foetal development, overdosage of retinoids might cause developmental defects, particularly affecting the central nervous system development of the foetus, causing hindbrain…
Descriptors: Neurological Impairments, Cognitive Ability, Pregnancy, Educational Testing
