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Top Ten Recent Brain Research Findings in Reading

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Early ID is important because the brain is more 'plastic' in younger children ... Brain Repair. One year after an educational intervention... – PowerPoint PPT presentation

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Title: Top Ten Recent Brain Research Findings in Reading


1
Top Ten Recent Brain ResearchFindings in Reading
2
10Pathways
  • Dyslexic readers use different brain pathways
    than do good readers.
  • Two neural pathways
  • One for beginning reading, sounding out slowly.
  • The other for speedier more skilled reading.

3
9Findings in Older Students
  • Imaging studies reveal increased activation in
    the frontal region.
  • Demonstrating over activation in Brocas region
    (speech center).
  • Students use systems in front of brain to
    compensate for disruption in back of brain.
  • One way the student compensates is to sub
    vocalize as he reads. (Page 82) Overcoming
    Dyslexia, Shaywitz, Sally, MD

4
8Early Identification
  • Reading disabilities diagnosed after third grade
    are much more difficult to remediate.
  • Early ID is important because the brain is more
    plastic in younger children and potentially
    more malleable for re-routing neural circuits.

5
7Brain Repair
  • One year after an educational intervention.
  • The auxiliary pathways on the right side were
    reduced. (These pathways are associated with
    slower sounding out skills).
  • There was further development of the primary
    system on the left-side (comparable to that of
    good readers).
  • These left-side posterior circuits are essential
    for rapid automatic reading. Shaywitz Shaywitz

6
Reasoning
  • Dr. Bennet Shaywitz, theorizes that since the
    basic circuitry for linking letters to sounds is
    disrupted in dyslexic readers, they develop and
    come to rely on other neural systems not only for
    reading but for problem solving.
  • They see things in a different way, are more
    creativethey think outside the box.

7
6Siblings
  • If one child in a family is dyslexic almost half
    of his brothers/sisters are also likely to be
    dyslexic.
  • The gene research on this area has shown no
    single dominant gene, probably several involved.

8
5Gender
  • No significant difference was found in the
    prevalence of reading disability in the boys and
    girls we identified. Shaywitz, S. (Page 32)

9
4Myth
  • The deficit responsible for the disorder resides
    in the language system it resides in only a
    small part of the language system, the
    Phonological module. (Page 41)

10
3Myth
  • Children with dyslexia are not usually prone to
    seeing letters or words backwards.

b d
11
2 Reading is not in the genes.
  • Speaking is natural, reading is not.
  • Reading is not built into the genes, it is
    acquired.
  • Reading has only been in existence for 5,000
    years, speaking has existed for far longer.

12
1 Sounds vs. Whole word
  • Everyone reads sound-by-sound.

13
Early Warning Signs
  • Delay in speaking
  • Mispronouncing
  • Misnaming
  • Insensitivity to rhyme
  • Talks around a word
  • Word retrieval
  • Understands meaning of words
  • Difficulty with segmenting, blending, and rapid
    naming
  • Difficulty knowing letter names, sounds

14
Later SignsDyslexic readers
  • Require many more exposures to a printed word
    over a much longer period of time.
  • Has difficulty with the little words in, on,
    the.
  • Reading nonsense words is the best measure of
    phonologic decoding skill deficit.
  • Often do better on tests of reading comprehension
    than on decoding isolated single words.

15
Key Elements of Effective Early Intervention
  • Systematic and direct instruction in
  • Phonemic awareness
  • Explicit Phonics
  • Practice in applying skills to reading/writing
  • Fluency training
  • Enriched language experiences

16
Teaching SLD Students to Read
  • use state-of-the-art evidence based
    instructional strategies and commercial reading
    programs.
  • For more information see numerous reading
    programs reviewed in chapters 15 19 of
    Overcoming Dyslexia (as reviewed by the National
    Reading Panel).

17
Oral Reading
  • Once a student is fairly fluent and has received
    adult feedback, use Guided Repeated Oral Reading.
  • To build up the numerous repetitions needed, use


18
In the Future
  • we may be able to more precisely target our
    interventions.
  • we may be able to pinpoint interventions that are
    scientifically sound.
  • we may be able to diagnose earlier and apply
    interventions that reduce reading problems in the
    intermediate years.
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