Dyslexia

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Dyslexia

  1. 1. DYSLEXIA Reported and Prepared by: Mae Lourdes D. Lindayao
  2. 2. A learning disability which hinders a person’s ability to spell or read. There are different types of dyslexia. Symptoms include difficulty learning letters, distinguishing word sounds, and confusion reading sentences in the correct order and direction.
  3. 3. <ul><li>Dyslexia is defective reading . It represents </li></ul><ul><li>loss of competency due to brain </li></ul><ul><li>injury, degeneration, and developmental failure to </li></ul><ul><li>keep pace with reading instruction. It </li></ul><ul><li>involves two classifications: Developmental and Specific . </li></ul><ul><li>Defective reading traced from environmental origin. </li></ul>
  4. 4. <ul><li>Existence of cerebellar involvement in dyslexia: </li></ul><ul><li>Cerebellar atropy/aphasia –learning disabled children. </li></ul><ul><li>Structural cerebellar abnormalities – adult schizophrenic persons. </li></ul><ul><li>Anatomical findings along with sensorimotor manifestations : </li></ul><ul><li>Reading problems by vestibule-cerebellar mechanisms </li></ul><ul><li>in conjunction with higher brain levels. </li></ul>
  5. 5. How might a dyslexic see text?
  6. 6. Visual-Spatial Form of Dyslexia <ul><li>Dyseidetic </li></ul><ul><li>Agnostic Dyslexia </li></ul><ul><li>Visual-perceptual </li></ul><ul><li>Visual Dyslexia </li></ul><ul><li>Visual-spatial </li></ul><ul><li>Left-hemisphere Strategy-type L </li></ul><ul><li>Surface </li></ul><ul><li>Type S </li></ul>
  7. 7. <ul><li>Two adult conditions of posterior alexia </li></ul><ul><li>and dysgnosia affect the visual-spatial </li></ul><ul><li>dyslexias in children. Posterior Alexia syndrome in an adult: could write but </li></ul><ul><li>not read. Suffering a lesion that </li></ul><ul><li>involves the medial and inferior aspects </li></ul>
  8. 8. <ul><li>of the left occipital lobe and </li></ul><ul><li>the splenium of the corpus callosum . </li></ul><ul><li>Visual pathways of left occipital area – </li></ul><ul><li>destroyed by the lesion and cut </li></ul><ul><li>off the connection between right hemisphere visual and left hemisphere language areas . </li></ul>
  9. 12. <ul><li>Optic Alexia often in adults with </li></ul><ul><li>occipital lesions where similar in configuration </li></ul><ul><li>are mistaken from another. Accompanied by </li></ul><ul><li>gaze disturbance in which patients easily </li></ul><ul><li>lost their place in lines and </li></ul><ul><li>picked out fragments from different lines. </li></ul>
  10. 13. <ul><li>Verbal Alexia is another form of </li></ul><ul><li>alexia. It is associated with occipital </li></ul><ul><li>lesions where patients could easily recognize letters but could not grasp whole </li></ul><ul><li>words. The words should have to </li></ul><ul><li>be put together letter by letter. </li></ul>
  11. 14. <ul><li>Inefficient recognition refers to Dysgnosia . According </li></ul><ul><li>to Sigmund Freud(1891) it means loss </li></ul><ul><li>of the ability to recognize objects. </li></ul><ul><li>Agnostic dyslexia involves patients that can </li></ul><ul><li>read but throw a slow, letter </li></ul><ul><li>by letter analysis of a word. </li></ul>
  12. 15. <ul><li>Slips of the tongue may be </li></ul><ul><li>cues to unconscious concerns. Children’s misreading </li></ul><ul><li>may have psychodynamic significance. Subjective meaningful </li></ul><ul><li>reading considers errors reflective of a </li></ul><ul><li>conflict between what is printed on </li></ul><ul><li>page and a child’s own concerns. </li></ul>
  13. 16. Dyslexic child’s handwriting.
  14. 17. Famous People with Dyslexia
  15. 18. The End.

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