Prenatal and childhood environmental exposures are an underrecognized primary cause of intellectual and other developmental disabilities. early-childhood-education; 0 … Underlying causes and prevalence of developmental disabilities For the majority of persons who have a developmental disability, the underlying cause is unknown. Causes of developmental … Developmental disabilities are attributable to a cognitive impairment, physical impairment, or both. In individuals with communicative impairment or limited ability to independently escape from … Nathaniel begins the presentation by discussing the global prevalence of developmental disability, a difficult figure to predict, given the data available (it should be noted that these figures are our best estimate at the current time and it appears that … A research strategy to discover the environmental causes of autism and neurodevelopmental disabilities. Such a taxonomic grouping of causes might be thought to create clear dichotomy of specific causes. a. Of particular concern are lead, mercury, and radiation. Certain viral infections during pregnancy; Preterm birth; Often there is no cure, but … They have trouble learning at the same rate as other kids in school. People are exposed to a wide range of chemicals during their lives. Researchers do not know all of the possible causes of learning disabilities, but they have found a range of risk factors during their work to find potential causes. If you are the parent of a child with a developmental disability, this is likely one of the first questions you asked the messenger. Fish that swim in these waters contain mercury. In this step, Nathaniel Scherer describes the causes of developmental disability, including environmental and genetic factors. Genetic or chromosome abnormalities. Birth defects may be caused by genetic problems, problems with chromosomes, or environmental factors. Don’t Hesitate To Ask. This is a particular Powerpoint Presentation that SPED Teachers/Instructors can discuss to their students. Prenatal and childhood environmental exposures are an underrecognized primary cause of intellectual and other developmental disabilities. PMID: … Evidence suggests that many chemicals can cause damage to the central nervous system which can impact developmental disabilities. There's a correlation with the biological make-up with some environmental influence on one's disabilities. Birth long before the … environmental causes of learning disabilities. In fact, the U.S. National Academy of Sciences has reported that 28 percent of developmental disabilities in children may be caused by environmental exposures, concluding that environmental factors are solely responsible for causation in 3 percent of cases, and that they act in concert with genetic factors in 25 percent of cases. Autism begins... in early childhood. In many instances, developmental disabilities are associated with a broad array of developmental risks that can impair neurological function, including hereditary disorders, perinatal and neonatal … Even in cases of known etiology the line between "cause" and "effect" is not always clear, leading to difficulty in categorizing causes. 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