Visual Search Performance and Observer Expectations,

Abstract

A field experiment is reported in which subject's expectations regarding cues to detection of selected target types, and the effect such expectations might have on time to detection, were investigated. A scenario procedure for measurement of expectations is described, and the reliability and validity of this procedure documented. A measure of the mismatch between the availability of certain features on individual targets and the subject's expectations is introduced. The variation of search time with mismatch is examined, and it is found that there is no evidence of its dependence on the extent of mismatch. Keywords: Target detection, Features, Visual search, Expectations, Cognitive factors, Psychological aspects.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1986
Accession Number
ADA174807

Entities

People

  • C. J. Woodruff

Organizations

  • Defence Science and Technology Group

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Armored Personnel Carriers
  • Attrition
  • Availability
  • Classification
  • Detection
  • Fire Support
  • Ground Based
  • Guns
  • Instructions
  • Materials
  • Observers
  • Reliability
  • Target Acquisition
  • Target Detection
  • Target Recognition

Fields of Study

  • Psychology

Readers

  • Instructional Design and Training Evaluation.
  • Mathematical Modeling and Probability Theory.
  • Sensor Fusion and Tracking Systems.