109 SG 3 Flashcards
A language problem in a child who is apparently typical in most if not all other aspects of development (problem is specific to language)
Specific language impairment
Investigate prevalence of language disorders in blood relatives contrasted with prevalence in unrelated individuals
Population genetic studies
Attempts to isolate specific genes for specific clinical conditions
Molecular genetic studies
Start with a proband; the first person they see with a disorder (child with SLI) to find out how many in the child’s family also have this disorder
Family studies
Similar to family studies, but extending back over several generations; the KE family and the FOXP2 gene
Pedigree studies
A higher concordance rate in identical (monozygotic) twins than in fraternal (dyzogotic) twins suggests a genetic basis for the condition; environmental influences can’t be ruled out, unless twins who are raised apart from each other are being studied
Twin studies
The first person the researchers see with the disorder
Proband
Identical twins
Monozygotic twins
Fraternal twins
Dyzogotic twins
Touch perception
Haptic
In the ASHA definition of language disorder, which components of language line up with (1) form
Phonology, morphology, syntax
In the ASHA definition of language disorder, which components of language line up with (2) content
Semantics
In the ASHA definition of language disorder, which components of language line up with (3) function
Pragmatics
DSM-5
- The Diagnostic and Statistical Manual of Mental Health Disorders, 5th edition
- Published by APA: American Psychiatric Association
what is DSM-5
Standard classification system of mental disorders used in clinical and educational settings across the world
- Using more than one assessment procedure, and the student scores at least 1.5 standard deviations below the mean, or below the 7th percentile for their chronological age or developmental level on tests in two or more of the following areas of language development: morphology, syntax, semantics, or pragmatics
- The student displays inappropriate or inadequate usage of expressive or receptive language as measured on representative spontaneous language sample of a minimum of 50 utterances
The two methods to qualify a student for services due to a language disorder in the California public schools
- The disorder is not due to the unfamiliarity with English
- The disorder adversely affects the student’s educational performance, and requires special education to meet the students needs
Two further requirements for students to be qualified for services due to a language disorder in the California public schools
Terminology used at Fresno State when diagnosing a language disorder
- Expressive language disorder
- Receptive language disorder
- Mixed expressive/receptive language disorder
What age do we diagnose specific language impairment (SLI) and why?
- SLI may be diagnosed after the age of 4
- To avoid diagnosing a child who may be a “late bloomer”
What percentage of children can be described as “late bloomers”
10-15%
What do “late bloomers” look like in terms of language development
By the age of 2:
- Decreased vocabulary - Failure to combine what few words they have
Prevalence of SLI in kindergarten children
7-8%
Percentage of children who will have persistent language difficulties in adolescence
Over 60%