Exam 9: Intellectual and Developmental Disabilities
Compare and discuss the possible known causes of intellectual disabilities.
Intellectual disabilities result from multiple causes, some known, many unknown (The ARC, 2011a). Possible known causes of intellectual disabilities include genetic conditions, problems during pregnancy, problems at birth, problems after birth, and poverty-related deprivation. Genetic conditions may result from genes inherited from parents, errors when genes combine, or from external factors, such as infections during pregnancy or overexposure to X-rays. Excessive maternal use of alcohol or drugs or exposure to certain environmental hazards, such as X-rays or insecticides, can damage the child. Temporary oxygen deprivation, abnormal labor and delivery, neonatal seizures, and head trauma at birth are examples of the types of problems during birth that can occur. Not vaccinating against childhood diseases and injuries can also cause brain damage. Children living in poverty are at higher risk for malnutrition, childhood diseases, and exposure to environmental health hazards, and often receive inadequate health care. Each of these factors increases the risk of intellectual disability.
Sociocultural causes may be attributed to both sociocultural and genetic factors. Biomedical causes are biological processes such as genetic disorders or nutrition. These include chromosomal abnormalities, metabolism and nutrition, and postnatal brain disease. Behavioral causes, such as dangerous activities or maternal substance abuse, can cause intellectual and other disabilities. Examples of behavioral causes are maternal infection or intoxication, and traumas or physical accidents. Lastly unknown prenatal influences such as anencephaly or hydrocephalus can result in severe disorders.
syndrome is a rare genetic disease that occurs in about 1 in every 20,000 births and is characterized by an absence of genetic material on the seventh pair of chromosomes.
A
List and discuss three educational goals for adolescents with intellectual disabilities.
1) Increase personal independence; 2) Enhance opportunity for community participation;
3) Prepare for employment; 4) Transition.
Lack of vaccinations for childhood diseases such as whooping cough, chicken pox, measles, and Hib disease may lead to brain damage caused by
In the AAIDD classification system, limited supports are characterized by consistency; time required may be limited but not intermittent.
In the area of communication skills, it is most important for the individual with intellectual disabilities to develop
Which classification system discussed in the text is determined by a clinician's impression?
Cultural-familial intellectual disabilities may be attributed to
The prevalence of intellectual disabilities worldwide and across all ages is estimated at what percentage?
If an individual scores at 95 to 100 or lower (two standard deviations below the norm), they meet the intelligence criteria for intellectual disability.
In recent years, the focus on educational placement for students with intellectual disabilities has been on
People with intellectual disabilities appear to develop efficient learning strategies, such as the ability to rehearse a task.
involve(s) the limited ability to reason, plan, solve problems, think abstractly, comprehend complex ideas, learn quickly and learn from experience.
Approximately one in every infants are born with Down syndrome in the United States.
What is the leading preventable cause of intellectual disabilities in the United States?
Infant stimulation programs often focus on the acquisition of sensorimotor functions.
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