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Blurring-Speed Distribution in a Kindergarten Population: The Queens Study

  • Harold N. Levinson

Abstract

The Queens blurring-speed study was initiated in an attempt to both substantiate and enlarge the data base derived from the Staten Island study. The entire available kindergarten population (n = 1543) of District 26 in Queens was screened for DD utilizing a new and improved 3D optical scanner and a modified blurring-speed methodology.* The aims were multifold:
  1. 1.

    To determine the statistical Modes I and II blurring-speed distributions as a function of word and elephant visual gestalts—and thus attempt to substantiate the bimodal distribution obtained in the Staten Island study. Inasmuch as an elephant (Mode I and II) gestalt was added to a modified Staten Island word gestalt, there resulted four blurring speed determinations per patient (word Mode I, word Mode II, elephant Mode I and elephant Mode II).

     
  2. 2.

    To determine Mode III positive as a function of low blurring speeds and as a function of high or “normal” blurring speeds—and thus attempt to substantiate the prior Staten Island correlation of Mode III positive with low blurring speeds.

     
  3. 3.

    To determine a statistical low blurring-speed incidence of dyslexia, if possible.

     
  4. 4.

    To evaluate Modes I, II, and III as a function of sex.

     
  5. 5.

    To evaluate Modes I, II, and III as a function of handedness.

     

Keywords

Bimodal Distribution Prediction Limit Tracking Speed Island Study Recognition Speed 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 1980

Authors and Affiliations

  • Harold N. Levinson
    • 1
  1. 1.New York University Medical CenterNew YorkUSA

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