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Intellectual disability 1 starts any time before a child turns 18 and is characterized by differences with both: Intellectual functioning or intelligence, which include the ability to learn, reason, problem solve, and other skills; and
The diagnosis of an intellectual disability is typically made through a test of intelligence or cognition, often assessed by the range of scores on an Intelligence Quotient (IQ) test. 1 This type of test will help the health care provider examine the abilities of a person to learn, think, solve problems, and make sense of the world. 2 Average ...
Intellectual and developmental disabilities (IDDs) are a primary focus of NICHD’s research support. IDDs include a variety of different types of disabilities and disorders, including those that affect the nervous system, metabolism, and cell function and survival.
IDDs have a variety of causes. Some possible causes include (but are not limited to): 1,2,3 Genetic mutations, additions, or deletions: for example, most cases of Rett syndrome are caused by a change in the Methly-CpG-binding Protein 2 (MECP2) gene
Down syndrome is a set of cognitive and physical symptoms that result from having an extra chromosome 21 or an extra piece of that chromosome. It is the most common chromosomal cause of mild to moderate intellectual disabilities. People with Down syndrome are at risk for several other health conditions.
The diagnosis of an intellectual disability is typically made through a test of intelligence or cognition, often assessed by the range of scores on an Intelligence Quotient (IQ) test. 1 This type of test will help the health care provider examine the abilities of a person to learn, think, solve problems, and make sense of the world. 2 Average IQ test score is around 100, and 85% of children ...
Research shows that risk factors may be present from birth and tend to run in families. 1 In fact, children who have a parent with a learning disability are more likely to develop a learning disability themselves. 2 To better understand learning disabilities, researchers are studying how children’s brains learn to read, write, and develop ...
Learning disabilities are different from learning problems due to intellectual and developmental disabilities, or emotional, vision, hearing, or motor skills problems. 1. Different groups may define “learning disability” differently, often depending on the focus of the organization.
NICHCY disability fact sheet #8: intellectual disabilities. Retrieved August 9, 2012, from https: ...
Many IDDs have no cure, but there are often ways to treat their symptoms. For example: Children with Down syndrome, Fragile X syndrome, Rett syndrome, and other IDDs can often benefit from therapeutic speech therapy, occupational therapy, and exercises to improve their gross- and fine-motor skills.