Visual Input Requirements Relating to Pursuit Tracking Accuracy.

Abstract

The interaction between visual function and pursuit tracking performance was measured in 10 human volunteers who participated in three daily 1-hr sessions involving two target sizes (18 min arc & 6 min arc - 1 min arc = 0.28 mrad), two target intensities (photopic = 25 cd/sq m, mesopic = .76cd/sq.m, and two directions of horizontal target motion. Pursuit tracking performance was measured by a computerized video digitizing system, developed at LAIR, during 20-sec tracking trials. Analysis of variance showed significant main effects for target luminance and under mesopic target conditions, target size on pursuit tracking accuracy, pointing to the need to delineate the visual requirements of visual motor tasks to assess the effects of battlefield laser exposure.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1987
Accession Number
ADA183445

Entities

People

  • Harry Zwick
  • Kenneth R. Bloom

Organizations

  • Letterman Army Hospital

Tags

Communities of Interest

  • Biomedical
  • Human Systems

DTIC Thesaurus Topics

  • Abstracts
  • Acquisition
  • Analysis Of Variance
  • Biological Sciences
  • Brightness
  • Classification
  • Computers
  • Detection
  • Intensity
  • Laser Safety
  • Lasers
  • Light Sources
  • Military Research
  • Moving Targets
  • Sensitivity
  • United States
  • Visual Acuity

Readers

  • Exercise and Sports Science.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Directed Energy