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Reading Disorders

Reading Disorders. By: Larry Burd, Ph.D. Director, North Dakota Fetal Alcohol Syndrome Center University of North Dakota, School of Medicine and Health Sciences Grand Forks, ND.

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Reading Disorders

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  1. Reading Disorders By: Larry Burd, Ph.D. Director, North Dakota Fetal Alcohol Syndrome Center University of North Dakota, School of Medicine and Health Sciences Grand Forks, ND

  2. Many of the slides in this presentation are from the work of Pelli et al Nature (423) 752-756; 2003 or Wilson et al Nature (423) 696-697; 2003.

  3. By age 25 the average person has read 100,000,000 words.

  4. Efficiency Level in Reading 1 n = number of letters in word

  5. 1,000 Human 100 Energy (relative to noise) Ideal 10 1 10 Word Length (letters)

  6. 0.1 Efficiency 0.01 1 10 Word Length (letters)

  7. 5 most common 3 letter words: • The • And • Was • For • His

  8. Least frequent word “his” is encountered: • 100 times per hour • 400,000 times per decade if reading 1 hour a day

  9. Letter Recognition • All or not very well phonemena

  10. Word Effect Coin C Join J

  11. Comprehension • Decoding impairs comprehension • Comprehension improves decoding

  12. Rset Pclae Rghit Ltteer Lsat Tihng Iprmoetnt Bcuseae porbelm Raed Rscheearch Elingsh Mese Still Lteter Ervey Word wlohe

  13. Comprehension Improves Decoding Skills Aoccdrnig to rscheearch at an Elingsh uinervtisy, it deosn’t mttaer in what oredr the ltteers in a word are, the olny iprometnt tihng is that frist and lsat ltteer is at the rghit pclae. The rset can be a toatl mses and you can still raed it wouthit porbelm. This is bcuseae we do not raed ervey lteter by istlef but the word as a wlohe.

  14. Signs Alphabet Letter Sounds Phonics Words Careful Reding Comprehension Rapid Reading Skipping Context Context and Skipping Reading Skills Progression

  15. Reversals are Frequent p/d p/b q/g m/w was/saw on/no

  16. Rarely 6/9 2/6 3/8

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