Lecture 4 - Cause of Reading Disabilities Flashcards
Who was the first to note reading deficits in children?
When?
Samuel T. Orton
1925
What did Orton attribute deficits in reading problems to?
2
Dominance.
Reading is part of a larger language system.
What sort of approach did Orton recommend for reading deficit?
(2)
Multisensory approach
Focus on sound-symbol correspondence.
Who were among first to classify Reading Disabilities?
What institution were they associated with?
Doris Johnson + Helmr Myklebust in a classic book on learning disabilities
Institute for Language Disorders, Northwestern University
What did Johnson + Myklebust describe?
Auditory dyslexia
What were Johnson + Myklebust among first to recognize the contribution of?
Phonological processing deficits to reading disabilities.
Speech-language Pathologists are involved with ______, ______, and ______ of children with reading disabilities due to change from _______ to _______ theories.
Identification
Assessment
Treatment
Visual-based
Language–based
Who do SLPs collaborate with when treating Reading Disabilities?
(3)
ALL teachers
Reading specialists
School psychologists
What do SLPS have to determine when treating Reading Disabilities?
(2)
Where the foundational deficits are
How to remediate them
What are three modern theories of Reading Disabilities?
Temporal Processing Deficit (Tallal, 1980)
Phonological core deficit (Torgeson, Stanovich, Gough, + Tunmer, 1987)
Double deficit hypothesis (Wolf & Bowers, 1999)
What are other terms that can mean “Reading Disability”?
4
Congenital word blindness
Dyslexia
Developmental dyslexia
Specific reading disability
What are Reading Disabilities (RD)?
2
Heterogeneous group of children with difficulty learning to read.
Individuals have normal intelligence.
What are Language-Learning Disability (LLD)?
School aged children with spoken and written language deficits (Gerber, 1993; Wallach + Butler, 1994)
How was Dyslexia defined in the 19th Century?
2
Reading problems due to TBI or illness (Berlin, 1887)
Difficulty with words
What is Dyslexia?
2
Children with developmental reading disabilities without brain damage
Letter/word reversals
When are letter/word reversals made by neurotypical children?
Until age 7
What else can children with reading disabilities be referred to as?
Learning Disabled (LD)
Traditionally, poor readers are defined by ___ SD below mean on Reading Achievement tests in Word Recognition or Reading Comprehension.
-2 SD
In England in the 1970’s, poor readers comprised ___-___% of students.
3-9%
According to a study on children in Connecticut (Shaywitz, 1992), Poor Readers are at the low end of a _____________.
Reading ability continuum.
What can affect the impact prevalence of reading disorders?
Arbitrary cutoff scores
-1 SD = 16%, -2SD = 2.3% ~ 13% difference!
Are there a difference in the prevalence of Reading Disabilities according to gender?
This was always believed?
No.
No.
(Boy to girl ratio 3:1 (Ritter et al, 1972) and 5:1 (Naidoo, 1972). 1980-Present - No significant difference)
(If only a discrepancy or low reading score is used to identify RD, then an equal number of girls and boys would be identified.)
Why are boys are referred for evaluation more than girls (Willicutt + Pennington, 2000)?
(2)
Due to perceived attention deficits.
Co-morbidity with other disorders that are often occurs more in boys
What are factors that would exclude a diagnosis of Reading Disability?
(6)
Poor or inadequate instruction
Lack of opportunity
Low intelligence
Sensory deficits (uncorrected vision + hearing)
Emotional disorder
Brain damage
A Reading Disability is a problem in learning to read which is due to ______. It includes difficulties in _______, which often reflects _______.
Congenital cognitive impairments
Single word decoding
Insufficient phonological processing
Decoding problems in reading disabilities are those that are unexpected in reference to ______, ______, and _______.
Age
Cognitive abilities
Academic abilities
What other issues can be caused by Reading Disabilities?
4
Writing and spelling
Specific language-based disability.
Problems with storing and retrieving phonological memory codes
Trouble with explicit phonological awareness
Dyslexia is a specific learning disability that is ______ in origin.
Neurobiological
What is Dyslexia characterized by?
2
Difficulties with accurate and/or fluent word recognition
Poor spelling and decoding abilities.
What do the difficulties in Dyslexia typically result from?
2
A deficit in the phonological component of language
It is often unexpected in relation to other cognitive abilities and the provision of effective classroom instruction.
What are some possible secondary consequences of Dyslexia?
2
Problems in reading comprehension
Reduced reading experience (can impede growth of vocabulary and background knowledge)
(Lyon, Shaywitz, + Shaywitz, 2003)
Is Dyslexia a developmental language disorder?
No
What is the defining characteristic of Dyslexia?
Difficulty in phonological processing.
When is Dyslexia present?
At birth and continues throughout adulthood.