CH4 Intellectual Disability & Developmental Disorder Flashcards

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0
Q

To be diagnosed with intellectual ability, individuals must show problems in at least _____ domain(s) of adaptive functioning? What are they?

A

At least 1 domain;
Conceptual skills–language, math, information, time
Social skills–interpersonal (eye contact), rules, friends
Practical skills–personal care, telephone, punctuality, using money

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1
Q

How is intellectual disability defined

A

Deficits in intellectual and adaptive functioning–as indicated by IQ and adaptive functioning scores (such as the Diagnostic Adaptive Behavior Scale DABS) less than 70–that manifest in early life

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2
Q

What was the name of Intellectual disability in the DSM-IV? What law preempted this name change in federal education, health and labor laws?

A

Mental retardation; Rosa’s law (2010)

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3
Q

How do clinicians indicate the severity of Intellectual Disability? What was the old standardWhat are the levels?

A
By level of adaptive functioning, formerly by IQ scores
Mild (adaptive functioning scores 55-70)
Moderate (40-55)
Severe (25-40)
Profound (<25)
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4
Q

What is the oldest professional organization devoted to the study of individuals with impairments in intellectual and adaptive functioning? Rather than the DSM-5 categorizations of degree of impairment, it recommends that professionals describe the individual’s ____ across different areas of functioning.

A

The American Association on Intellectual and Developmental Disabilities (AAIDD); need for supports

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5
Q

When is a child diagnosed with Global Developmental Delay (GDD)? Children are usually diagnosed by age ____, identified by either _____ or by failing to reach _____

A

When the clinician suspects Intellectual ability but the child is less than 5 years old so an IQ test cannot be administered; 1 year; physical abnormalities; developmental milestones

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6
Q

What are the developmental milestones first shown at 12 months?

A

Walks but falls easily; first words; separation anxiety; drinks from a cup

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7
Q

About 4% of children with GDD have an identifiable genetic disorder that explains the delay. What are the most common? What standard test would expose them?

A

Down Syndrome, Fragile X Syndrome, Rett Syndrome; Chromosomal microarray (CMA)

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8
Q

About 25% of individuals with Intellectual Disability show _____, actions of such intensity, frequency, or duration that their own or others’ physical safety is jeopardized. What are the most common?

A

Challengies Behavior; stereotypies, self-injurious behaviors (SIBs; head banging, scratching), aggression

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9
Q

Why do individuals engage in stereotypies?

A

They are self-reinforcing, increasing pleasure or reducing anxiety

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10
Q

What are possible explanations for why individuals engage in self-injurious behaviors?

A

They serve a function (e.g. communication); hypersensitivity to dopamine; high levels of endogenous opioids or endorphins (high pain tolerance)

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11
Q

By definition, agressive acts are done _____ . What are the most common reasons for agression in individuals with Intellectual Disability?

A

Deliberately; to avoid or escape a task, assignment or chore

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12
Q

The term _____ refers to the presence of mental disorders among individuals with intellectual disability. _____ refers to the tendency of clinitions to attend to the features of Intellectual Disability rather than to the symptoms of coexisting mental disorders.

A

Dual diagnosis; diagnostic overshadowing

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13
Q

Why do some experts argue that the prevalence of Intellectual Disability is lower than 2.5% (percent with IQ two standard deviations below mean)?

A

Also requires deficits in adaptive functioning; IQ can fluctuate; reduced longevity

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14
Q

How does the prevalence of intellectual disability vary by age and gender?

A

most frequent in school-age children and adolescents (perhaps just more noticeable while in school); slightly more common in males (perhaps from greater susceptibility to X chromosome linked disorders

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15
Q

What is the organic/cultural-familial Intellectual Disability based on?

A

Whether the cause is known (organic) or unknown, but either could be due to environmental or genetic anomalies.

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16
Q

What is the similar sequence similar structure hypothesis? Is it supported?

A

Zigler’s (1969) suggestion that children with Intellectual Disability develop through the same sequence as normal children, just at a slower pace. Research on cultural-familial Intellectual Disability has supported it but that on organic Intellectual Disability has had mixed results, as such chidren often show characteristic strengths and weaknesses.

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17
Q

Instead of simply labeling individuals as having organic Intellectual Disability, researchers are interested in determining _____ to better understand that strengths and weaknesses associated with various disorders

A

behavioral phenotypes

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18
Q

What are the five general categories of known causes of intellectual disability?

A

chromosomal abnormalities; metabolic disorders; embryonic teratogen exposure; complications during delivery; childhood illness or injury

19
Q

Name 5 chromosome abnormalities that lead to Intellectual disability?

A

Down Syndrome; Fragile X Syndrome; Prader-Willi Syndrome; Angelman’s Syndrome; Williams Syndrome

20
Q

What are the three causes of Down Syndrome in order or precedence

A

Nondisjuntion–trisomy 21; extra 21st chromosome (fails to separate during meiosis); 95% of cases
Translocation–abnormally fused chromosome; inherited from unaffected carrier parents; 3%
Chromosomal Mosaicism–some normal and some abnormal cells that don’t separate during mitosis

21
Q

What are some physical characteristics of Down Syndrome? Strengths and weaknessses? Demeanor? Comorbid illnesses?

A

flat face, slanted eyes, simian crease, small brain size; language delays, good visual-spacial reasoning; happy, social; low rate of psychiatric disorders, heart disease, 60 yr life expectancy

22
Q

What causes Fragile X Syndrome?

A

Inheritance of mutated gene on X chromosome, the Fragile X Mental Retardation (FMR1) gene with too many CGG repeats, causing decrease in Fragile X Mental Retardation Protein (FMRP), which assists in normal brain development

23
Q

How does Fragile X Sydrome differ by gender? What are the characteristic strengths and weaknesses?

A

Boys have greater impairment, high rates of autistic-like behavior and ADHD; good at simultaneous processing (puzzles, mazes), but bad at sequential processing (reading, instructions); girls are characteristically shy

24
Q

What causes Prader-Willi Syndrome?

A

A non-inherted genetic disorder caused by missing paternal information of chromosome 15

25
Q

What characterized Prader-Willi Syndrom (PWS)

A

mild Intellectual Disability, strong in visual-spacial tasks, weak short term memory, overeating (hyperphagia) and obesity, oppositional behavior towards adults (resulting in low adaptive behavior), and obsessive-compulsive behavior; psychotic symptoms (hallucinations)

26
Q

What are the characteristics of Angelman’s Syndrome? What causes it?

A

happy demeanor, persistent social smile, jerky movement, hyperactivity and inattention, hypopigmentation, seizures; chromosome 15 abnormalities, usually comtains only father’s info

27
Q

What causes Williams Syndrome? What are the characteristics?

A

genetic disorder caused by small deletion in chromosome 7; low intellectual functioning; unusual strengths in language, weak in visual-spacial tasks; elfin features, joyful and mischievious look; sociable, hyperactivity, hyperacusis (noise sensitivity); ADHD, anxiety; insufficient elastin causes cardiovascular disease

28
Q

_____ is a metabolic disorder caused by inheriting a recessive gene from both parents. Sufferes lack _____, the enzyme that breaks down _____ . Youths who do not _____ develop severe, irreversible intellectual impairment and are characterized by _____ behavior.

A

Phenylketonuria (PKU); phenylalanine hydroxylase; phenylalanine; diet; hyperactive

29
Q

Embryonic teratogen exposure can result from maternal _____ or _____. Viruses such as _____ and _____ acquired during pregnancy are now routinely immunized against, leaving _____ as the main concern.

A

Illness; substance abuse; rubella, syphylis, HIV

30
Q

Intellectual disability is most often caused by maternal consumption of _____ drugs rather than _____. _____ is caused by maternal alcohol consumption during pregnancy, which is characterized by _____ abnormalities such as a _____ upper lip, head circumference, eye opening, and nose. Psychologically, kids are at greater risk for ____ in early childhood and _____ in late childhood and adolescence.

A

Socially accepted drugs, hard drugs; Fetal Alcohol Syndrom (FAS); craniofacial; small; ADHD, mood problems.

31
Q

Preterm birth is a risk factor for Intellectual Disability because of the rapid growth of the ____ during the _____ trimester. Delivery complications that invovle ____ as well as gestation compications such as maternal _____ or uncontrolled diabetes can also lead to Intellectual Disabiltiy.

A

central nervous system, third trimester. Anoxia (oxygen deprivation), hypertension

32
Q

What are three childhood illnesses that can lead to Intellectual Disability?

A

Encephalitis, meningitis, lead toxicity

33
Q

Cultural-familial Intellectual Disability results from the interaction of the child’s _____ and _____ over time. What three factors correlate with it?

A

Genes, environmental experiences; low SES, being an ethnic minority, low-quality home environment

34
Q

What are three types of prenatal screening. Which are the most serious?

A

Serum screening–tests mother’s blood, safe
Ultrasound–structural abnormalities, relatively safe
Amniocentesis–risky
Chorionic villus sampling (CVS)–riskier

35
Q

What was the evaluation of the Infant Health and Development Program (IHDP) for preventing Intellectual Disability?

A

Early interventions can but IQ but results aren’t maintained over time; offering interventions to high-risk families doesn’t mean they will participate

36
Q

_____ involved placing children with Intellectual Disabilities in classrooms with typically developing peers to the maximum extent possible. This gave way to the practice of _____ , allowing children with IDs to participate in all subjects, usually with the support of a _____ . Today the focus has shifted from ____ children are educated to _____ they are educated.

A

Mainstreaming; inclusion; classroom aide; where, how

37
Q

The _____ (IDEA) passed in 1997 codified the practice of _____ and required all children with Intellectual Disabilities in the community to be identified and given a comprehensive written plan for their education. Infants and toddlers are provided a ____ (IFSP) while preschoolers and school-aged children are given a _____(IEP)

A

Individuals with Disabilities Education Act; inclusion; Individualized Family Services Plan; Individualized Education Program

38
Q

A primary method of teaching children with intellectual and physical disabilities, _____ design is an educational practice that involves creating _____ and _____ that allow learning goals to be achieved by children of with varying abilities and skills. _____ children use and benefit from these materials.

A

universal; instructional materials, activities; all

39
Q

_____ is a scientific approach to identifying a child’s problematic behavior, determining its cause, and changing it. Based on the work of _____ (1974), it asserts that behavior can be understood in terms of _____ actions and environmental contingencies. Rather than viewing behavior as originating from within the person, the theory asserts that behavior is a function of environmental _____ and _____.

A

Applied behavior analysis (ABA); Skinner, overt; antecedents, consequences

40
Q

A behavior analyst would begin by _____ the problematic behavior, then _____ and recording the challenging behavior, then conclude by conduction a _____ , which identifies the _____ and _____ of the specific behavior

A

operationally defining; observing; functional analysis; antecedents, consequences

41
Q

Observational methods used by behavioral analysts include (1) _____ recording (frequent behaviors _____ a clear beginning and end), which records the number of times the behavior occurred in a specific time frame; (2) _____ recording (for frequent behaviors _____ a clear beginning or ending), which splits the observation period into short segments and marks whether or not the behavior occured in each segment, or _____ recording (for behaviors that take a long time to resolve).

A

Event, with; interval, without; duration

42
Q

Differential reinforcement involves _____ reinforcing desired behavior and _____ unwanted behavior. The two most common forms are differential reinforcement of _____ and differential reinforcement of _____, which reinforces not engaging in the problematic behavior

A

positively, ignoring; incompatible behavior (DRI); zero behavior (DRO)

43
Q

Positive punishment involves the _____ of a stimulus in order to _____ the frequency of a behavior. Punishment by _____ might involve shocking a baby every time she engages in self-injurious behavior. Another form of positive punishment is called _____, in which the child is forced to restore his surroundings to the same (or better) condition before the disruptive act. It is often used in combination with _____, in which the child must repeatedly practice an acceptable behavior following an unacceptable act.

A

presentation, decrease; contingent stimulation; over-correction positive practice

44
Q

Negative punishment, which is used ____ often than positive punishment might involve _____ (withdrawing reinforcement immediately after the unwanted behavior), _____ (limits access to reinforcement for a certian time period, or _____ (each bad behavior costs a certain number of tangible reinforcers)

A

more; extinction, time out, response cost

45
Q

Medication for children and adolescents with Intellectual Disability is _____ administered. The medication of choice for disruptive behavior is the atypical antipsychotic _____. Self-injurious behaviors and stereotypies are often treated with traditional antipsychotics that block _____ receptors or sometimes with nalrexone, which blocks _____ receptors.

A

frequently; risperidone; dopamine, opioid

46
Q

What is the most common cause of inherited mental impairment?

A

Fragile X Syndrome