Effect of Visual Acuity on Target Acquisition

Abstract

Two laboratory experiments were conducted. The purpose of the first experiment was to determine the effect of far visual acuity on target acquisition performance relative to 10 other factors. A rank ordering was achieved by employing a screening technique (partial factorial). Far visual acuity ranked second behind slant range in most analyses. The second experiment was conducted to generate curves which related search times and detection probability to far visual acuity at different levels of slant range, masking and observer experience. A full factorial design was employed to test the factors. Subjects with better than 20/20 acuity located the targets at least twice as fast as subject with 20/40 and 20/50 acuity. It was also found that the effect of far visual acuity depended upon the observer-to-target range and upon the extent of target masking.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1976
Accession Number
ADB012482

Entities

People

  • Hubert O. Whitehurst
  • Jeffrey D. Grossman

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Biomedical
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Air Force Facilities
  • Armored Personnel Carriers
  • Biological Sciences
  • Color Vision
  • Combinatorial Analysis
  • Detection
  • Factorial Design
  • Human Factors Engineering
  • Military Research
  • Observers
  • Psychology
  • Slant Range
  • Target Acquisition
  • Target Detection
  • Test And Evaluation

Readers

  • Organizational Psychology.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.