Delay/Dis + SLI/DLD Flashcards

1
Q

There is little variation in typical language development. True/False.

A

False.

There is wide variation in typical development.

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2
Q

Range of comprehension of single words:

10 months

A

0-144

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3
Q

Range of comprehension of single words:

16 months

A

80-300

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4
Q

Range of production of single words:

12 months

A

0-24

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5
Q

Range of production of single words:

24 months

A

90-550

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6
Q

age range of development of 2-word phrases

A

16-24months

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7
Q

Risk factors for language delay/disorder.

8

A

Learning disability.

Genetic / chromosomal syndromes.

Family history of SLCN.

Physical/motor difficulties (Cerebral Palsy)

Chronic illness

Prematurity / low birth weight.

Sensory difficulties (Hearing or Visual impairment)

Environmental factors (neglect)

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8
Q

Features of language delay

4

A

Typical pattern of speech and language development.

Expected to resolve.

May be ‘cause’ (mild fluctuating hearing loss), or there may be no clear reason.

Do not usually have significant medical factors or learning disability.

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9
Q

what % of language delay at 3yrs resolves by school age?

A

Expected to resolve: 50% 3-year-olds with language delay resolved by school age.

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10
Q

Prevalence of language delay at 3yrs.

Dale et al., 2013

A

Common: 10% of 3-year-olds (Dale et al., 2013).

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11
Q

Possible cause of language delay.

A

Mild fluctuating hearing loss,

or there may be no clear reason

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12
Q

Features of language disorder

4

A

Do not follow typical rate or pattern of speech and language development.

Often a ‘cause’.

Disorder will persist through life.

May not have other disabilities or learning disorder.

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13
Q

Language disorder: Negative outcomes (4)

A
Negative outcomes:
Literacy
Education
Psychosocial outcomes
Wellbeing
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14
Q

describe continuum of delay and disorder

A

Delay Disorder

But at what point does a delay become a disorder?

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15
Q

At what age is a delay unlikely to resolve? What is this described in terms of?

A

5

Critical Age Hypothesis

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16
Q

Define SLI (2)

A

Language impairment where there is not medical, neurological, sensory or functional cause.

Non-verbal intelligence is within the normal range.
(above 70/75, usually over 80).

17
Q

What criteria are used to define SLI? (2)

A

Discrepancy and Exclusionary

18
Q

Define Discrepancy Criteria: (4)

A

Verbal vs non-verbal intelligence, and language abilities.

Non-verbal IQ within normal limits (usually over 80)

1SD below mean on at least 2 standardised language tests.

Non-verbal IQ usually higher then verbal IQ

19
Q

Define Exclusionary Criteria: (4)

A

Excluding children from SLI if there is a medical, neurological, sensory or functional cause that can explain the child’s language difficulties.

20
Q

Problems with Discrepancy and Exclusionary criteria (4)

A

IQ assessments are liable to measurement error.

Similar language impairments are found in individuals with below average IQ.

Heterogeneous population – huge variation in SLC abilities.

Non-verbal IQ makes no difference to severity of language impairment and social, emotional, behavioural and academic outcomes (Norbury et al., 2016).

21
Q

How was DLD established? (4)

A

CATALISE: Delphi consensus study

Multinational and Multidisciplinary.

Debated terminology:
SLI, DLD, Primary language impairment (PLI) and Language learning impairment.

Bishop

22
Q

Features of DLD (5):

A

Not associated with any known biomedical aetiology.

Does not require discrepancy between verbal/nonverbal IQ.

Neurobiological / environmental risk factors does not prevent a diagnosis of DLD.

Can co-occur with other neurodevelopmental disorders: Eg: ADHD.

Can be diagnosed before 5.

23
Q

Prevalence of DLD

A

10% prevalence. 7.5% without intellectual disability

24
Q

Common features of DLD (2)

A

Vocabulary / Word finding difficulties

25
Q

Lack of vocabulary is difficulty…

A

Lack of vocabulary: difficulty storing.

26
Q

Word finding difficulties are…

A

Word finding difficulties: difficulty retrieving.

27
Q

‘searching’ behaviours are indicators of..

examples (3)

A

Word finding difficulties

Replacing, gesturing, ‘thing’.

28
Q

Lexical representation is: (2)

A

Lexical representation:
How a word is stored.

Semantic and Phonological information.