What cause the change in the word mental retradation?
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Intellectual disability (ID), also known as general learning disability[3] and mental retardation (MR),[4][5] is a generalized neurodevelopmental disorder characterized by significantly impaired intellectual and adaptive functioning. It is defined by an IQunder 70 in addition to deficits in two or more adaptive behaviors that affect everyday, general living.
Intellectual disabilitySynonymsIntellectual developmental disability (IDD), general learning disability[1]Children with intellectual disabilities or other developmental conditions can compete in the Special Olympics.SpecialtyPsychiatry, pediatricsFrequency153 million (2015)[2]
Once focused almost entirely on cognition, the definition now includes both a component relating to mental functioning and one relating to individuals' functional skills in their environments. As a result of this focus on the person's abilities in practice, a person with an unusually low IQ may not be considered to have intellectual disability.
Intellectual disability is subdivided into syndromic intellectual disability, in which intellectual deficits associated with other medical and behavioral signs and symptomsare present, and non-syndromic intellectual disability, in which intellectual deficits appear without other abnormalities. Down syndromeand fragile X syndrome are examples of syndromic intellectual disabilities.
Intellectual disability affects about 2–3% of the general population.[6] Seventy-five to ninety percent of the affected people have mild intellectual disability.[6] Non-syndromic or idiopathic cases account for 30–50% of cases.[6] About a quartenr of cases are caused by a genetic disorder,[yes are inherited from a person's parents.[7]Cases of unknown cause affect about 95 million people as of 2013
Intellectual disabilitySynonymsIntellectual developmental disability (IDD), general learning disability[1]Children with intellectual disabilities or other developmental conditions can compete in the Special Olympics.SpecialtyPsychiatry, pediatricsFrequency153 million (2015)[2]
Once focused almost entirely on cognition, the definition now includes both a component relating to mental functioning and one relating to individuals' functional skills in their environments. As a result of this focus on the person's abilities in practice, a person with an unusually low IQ may not be considered to have intellectual disability.
Intellectual disability is subdivided into syndromic intellectual disability, in which intellectual deficits associated with other medical and behavioral signs and symptomsare present, and non-syndromic intellectual disability, in which intellectual deficits appear without other abnormalities. Down syndromeand fragile X syndrome are examples of syndromic intellectual disabilities.
Intellectual disability affects about 2–3% of the general population.[6] Seventy-five to ninety percent of the affected people have mild intellectual disability.[6] Non-syndromic or idiopathic cases account for 30–50% of cases.[6] About a quartenr of cases are caused by a genetic disorder,[yes are inherited from a person's parents.[7]Cases of unknown cause affect about 95 million people as of 2013
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