Pre-Attentive and Attentive Visual Information Processing

Abstract

Research on several interrelated topics is described in this report. These projects are focused on the analysis of feature and conjunction detection, models of selective attention, and curve tracing. One project examines the effects of a heterogeneous background on feature search. Another assesses spatial factors (such a target-distractor separation) in the detection of targets defined in terms of simple features. A third project has the goal of developing methods for determining the extent to which processing is serial or parallel. A fourth represents initial efforts to determine whether conjoined features are represented in retinotopic or spatiotopic 'maps'. A fifth explores top-down and bottom-up factors in visual search. A sixth makes use of an inhibitory priming method to test early-and late-selection models of selective attention. Finally, a project is reported in which the operation of visual curve tracing is studied. Keywords: Visual perception; Attention; Perception; Information processing; Vision; Visual search; Curve tracing.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1989
Accession Number
ADA209884

Entities

People

  • H. E. Egeth

Organizations

  • Johns Hopkins University

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Artifacts
  • Biological Sciences
  • Computational Complexity
  • Computer Simulations
  • Data Displays
  • Detection
  • Identification
  • Identities
  • Information Processing
  • Monitoring
  • Parallel Computing
  • Parallel Processing
  • Pattern Recognition
  • Reaction Time
  • Redundancy
  • Targets

Readers

  • Computer Vision.
  • Systems Analysis and Design
  • Vision Science/Vision Psychology/Cognitive Neuroscience.