Mental Retardation: a disability category of IDEA
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Mental Retardation:a disability category of IDEAECED 2060
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IDEA: mental retardation
Click icon to add pictureSignificantly subaverage general intellectual functioning, existing concurrently with deficits in adaptive behavior and manifested during the developmental period, that adversely affects a child’s educational performance.
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Intellectual Functioning (skills)
Reasoning Planning Problem solving Thinking abstractly Comprehension Learning Memory Generalization Motivation Academic
achievement
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Adaptive Behaviour
-- a collection of conceptual, social, and practical skills that have been learned by people in order to function in their everyday lives, such as reading, writing, language, money concepts, self-direction, interpersonal skills, responsibility, self-esteem, gullibility, rules, laws, victimization, eating, mobility, toileting, dressing, preparing meals, house-keeping, transportation, medications, telephone use, etc.
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DSM definition (ish): 1. Significant subaverage intellectual
functioning, as measured by standardized testing. Classified by degree of severity: mild (50 – 55 to approximately 70; moderate (35 – 40 to 50 – 55; severe 20 – 25 to 35 to 40; profound below 20 – 25.
2. Concurrent deficits in adaptive behavior (personal independence; social responsibility)
3. Age of onset during the developmental period (before 18th birthday)
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IQ bell curve; norms; standard deviations:
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Individuals with mental retardation represent 1% to 3% of the general population.
Mental retardation is 1.5 times more common in boys than in girls.
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There are more than 250 biologic causes of mental retardation, which fall neatly into these categories: Genetic; chromosomal; metabolic Perinatal or prenatal
incident Acquired childhood
disorders; infections; illnesses; malnutrition
Environmental toxins
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However, only ~25% of cases fall into those biologic categories. The other ~75% have unknown causes (~30%) or are traceable to a non-biologic cause (psychosocial and sociocultural factors).
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So, here we go (details): 30% -- cause UNKNOWN
Chromosomal abnormalities Down Syndrome -- 5 to 6% William Syndrome Fragile X Syndrome Angelman syndrome Prader-Willi syndrome Rett Syndrome
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Metabolism and nutritional factors Phenylketonuria Galactosemia Tay Sachs disease Hunter syndrome Hurler syndrome Sanfillipo syndrome Metachromatic leukodystrophy Adrenoleukodystrophy Lesch-Nyhan's syndrome Reye's syndrome Congenital hypothyroidism high bilirubin levels in infants hypoglycemia
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Infection and intoxication Fetal Alcohol Syndrome Maternal infections congenital rubella HIV Toxoplasmosis drug usage Prematurity Low Birth Weight Rh incompatibility Encephalitis Radiation Meningitis Congenital cytomegalovirus Listeriosis Methylmercury poisoning Lead poisoning
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Postnatal brain disease Neurofibromatosis Tuberous Sclerosis
Traumas and physical accidents Asphyxiation Anoxia Seizures Intracranial hemorrhage head injury poisoning
Unknown prenatal influences Anencephaly hydrocephalus
Environmental Malnutrition Neglect abuse
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A few possible characteristics:
~Failure to meet age-appropriate expectations (norms)~Delayed development or lack of visual or auditory response~Delayed development or lack of language development~Motor delays
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Delayed gross and fine motor coordination
However, often ambulatory and capable of independent mobility, unless severe or profound mental retardation
Delayed perceptual motor skills exist (e.g., body awareness, sense of touch, eye-hand coordination)
Awkward or uncontrolled movement
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Delays or deviations in speech and language skills (mild to moderate)
(Severe) significant speech and language delays and deviations (such as lack of expressive and receptive language, articulation errors, and little, if any, spontaneous interaction)
(Profound) no spontaneous communication patterns, or echolalic speech, speech out of context, and purposeless speech
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Media, of course
“Special Olympics” “Kids With Down
Syndrome Intro Sequence”
“I Have a Voice”
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Local/ National Resources
(See packet)
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Early Intervention and Teaching Strategies
(see packet)
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ACTIVITY!!!!!! Get into groups of THREE people. Get a packet of straws and some
tape. One of you cannot use your
preferred hand. Another cannot use your thumbs. The other cannot talk. Make a tower of straws as high as
you can. It cannot be attached to anything – it
must be free-standing. The group with the tallest tower
WINS!! This is just for frustration and to get
a feeling of that frustration …