Dyslexia Definition

 

Definition | Diagnostic Criteria | Age at Onset | Associated Features of Dyslexia | Alternate Definitions | Educational Approach | Genetics | Dyslexia Test

DYSLEXIA

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DYSLEXIA Symptoms

I. DEFINITION

DYSLEXIA,

Dyslexia is also known as Reading Disorder. The symptoms of dyslexia are measured by reading achievement, i.e., reading accuracy, speed or comprehension as measured by standardized tests, that falls substantially below that expected, given the individual’s chronological age, measured intelligence, and age appropriate education (DSM-IV Dyslexia 1994). Dyslexia symptoms can show up for a variety of reasons.

ACQUIRED DYSLEXIA

Acquired Dyslexia is a disorder in reading that occurs in adults who once knew how to read well, usually due to clear damage to the nervous system (as in a stroke, for example) (Rosenhan, et. al.,1989).

TEA'S ACCEPTED DEFINITION OF DYSLEXIA

Dyslexia is difficulty with the alphabet, reading, reading compre-hension, writing and spelling in spite of adequate intelligence, exposure, and cultural opportunity (Dyslexia informational packet, 1994).

3 CATEGORIES OF DYSLEXIA TYPES (Council on Scientific Affairs, 1989):

  • language disorders
  • aritculary and graphomotor dyscoordination
  • visuospatial perceptual disorders