Purpura, MD ; et al G. Swisher, MD. Access through your institution. Add or change institution. Save Preferences. Privacy Policy Terms of Use. Access your subscriptions. Free access to newly published articles. Purchase access. Rent article Rent this article from DeepDyve.
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Autism is a pervasive developmental disorder PDD that affects brain development, mainly in communication, language, and social skills. Some symptoms might appear from the moment of birth, while others show as they become older. Problems in communicating and social-interacting include:. In a Nutshell. Deficits in Intellectual ability are not a part of criteria diagnosis of Autism and have never been. Autism show delays in developing Adaptive capacity, which presents an uneven trajectory in language, communication, and emotional states.
In this case, development is not static. Mental Retardation Intellectual Disability is the disorder that assumes challenges in children's intellectual ability to learn.
Conversely, this not equate to an inability to learn. Mental Retardation, also known as Intellectual Disability, is a generalized neurodevelopmental disorder characterized by significantly impaired intellectual and adaptive functioning.
It is defined by an IQ under 70, in addition to deficits in two or more adaptive behaviors that affect everyday, general living. Adaptive skills are the skills needed for daily life. These skills include the ability to speak a language and understand words, lack of communication, use of community resources, health, self-care, and social skills, and functional academic skills reading, writing, and arithmetic.
A child is generally diagnosed with mental retardation before the age of Family members suspect intellectual and developmental delays when a child enters milestones at a slower rate.
For example, a child may be more reluctant to develop motor skills than other children his age. He may take longer than usual to go over. According to the slow development of motor skills, a child with mental retardation may be hesitant to develop language and daily living skills. He may be incapable of brushing his teeth or eat by himself. He may also start talking much later than other children his age.
Mental Retardation classifies into four categories :.
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