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Near-Vision Acuity Levels and Performance on Neuropsychological Assessments Used in Occupational Therapy

  • Autores: Linda A. Hunt, Carl J. Bassi
  • Localización: American Journal of Occupational Therapy, ISSN 0272-9490, Vol. 64, Nº. 1, 2010, págs. 105-113
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • We investigated how induced blur affects performance on the Trail Making Test and Digit Symbol Test routinely used in occupational therapy cognitive evaluations. The study used a factorial design with both age (young and old adults) and simulated blur levels of near visual acuity (20/50 and 20/100) manipulated between participants. A sample of 124 healthy, community-living adults was used in the final analysis. Significant differences (p < .05) were found in performance for young participants between 20/50 and 20/100 blur level as well as between 20/20 and 20/100 blur level for the Digit Symbol Test. Scores for old participants decreased as a function of blur but were not significant. This study illustrates that cognitive evaluations used throughout the lifespan may require the appropriate visual acuity level to maximize performance. Occupational therapists� understanding of client factors and their effect on performance is fundamental to the client evaluation process


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