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Research Article  |   May 2000
Relationship Between Performance on Tests of Basic Visual Functions and Visual-Perceptual Processing in Persons After Brain Injury
Author Affiliations
  • Yolanda Cate, MS, OTR, CDE, was Teaching Associate, Department of Occupational Therapy, University of Kansas Medical Center, 3033 Robinson Building, 3901 Rainbow Boulevard, Kansas City, Kansas, at the time of this writing. (Mailing address: Texas Woman’s University, School of Occupational Therapy–Dallas, 8194 Walnut Hill Lane, Dallas, Texas 75231-4365; ycate@twu.edu)
  • Lorie Richards, PhD, OTR, is Teaching Associate, Department of Occupational Therapy, University of Kansas Medical Center, 3033 Robinson Building, 3901 Rainbow Boulevard, Kansas City, Kansas
Article Information
Neurologic Conditions / Traumatic Brain Injury / Vision / General
Research Article   |   May 2000
Relationship Between Performance on Tests of Basic Visual Functions and Visual-Perceptual Processing in Persons After Brain Injury
American Journal of Occupational Therapy, May/June 2000, Vol. 54, 326-334. doi:10.5014/ajot.54.3.326
American Journal of Occupational Therapy, May/June 2000, Vol. 54, 326-334. doi:10.5014/ajot.54.3.326
Abstract

Objective. In this correlational study of adults receiving occupational therapy who sustained a cerebrovascular accident (CVA), the relationship between basic visual functions (including acuity, visual field deficits, oculomotor skills, and visual attention or scanning) and higher level visual-perceptual processing skills (e.g., visual closure and figure–ground discrimination) was investigated.

Method. Thirty adults who sustained CVA and 20 adults without a history of CVA were given a basic visual function screening and the Motor-Free Visual Perception Test (MVPT). Scores on the vision screening and the MVPT were correlated statistically.

Results. A Pearson product-moment correlation analysis produced a correlation of r = .75 between vision screening scores and scores from the MVPT.

Conclusion. These results suggest that a positive relation exists between basic visual functions and visual-perceptual processing skills. Further, the results suggest that evaluation of visual-perceptual processing skills must begin with assessment of basic visual functions so that the influence of these basic visual functions on performance in more complex tests can be taken into consideration.