The Deployment of Visual Attention

Abstract

The world presents more information to the visual system than the visual system can analyze. One response to this problem is selective attention, the ability to direct processing resources to some stimuli at the expense of others. This research project seeks to understand how attention is deployed in visual search tasks in which observers look for target items in visual scenes containing distracting items. The work described under Aim 1 concerns the development of the Guided Search model and includes a discussion of a new, 2- pathway architecture describing the route(s) from input to visual awareness. The evidence summarized under Aim 2 leads to the conclusion that there is only a very small capacity memory for the progress of a visual search (e.g. which distractors have been rejected?). Finally, Aim 3 reviews support for multiple modes of attentional deployment operating under very different "speed limits"

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2006
Accession Number
ADA448174

Entities

People

  • Jeremy M. Wolfe

Organizations

  • Brigham and Women's Hospital

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Brain
  • Cognitive Science
  • Computer Vision
  • Data Sets
  • Deployment
  • Detection
  • Eye Movements
  • Health Services
  • Information Processing
  • Multiple Targets
  • Neurosciences
  • Object Recognition
  • Observers
  • Parkinson'S Disease
  • Psychology
  • Reaction Time
  • Recognition

Fields of Study

  • Computer science

Readers

  • Distributed Systems and Data Platform Development
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.