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Related Experiment Videos

Eye movements and scene perception: memory for things observed.

David E Irwin1, Gregory J Zelinsky

  • 1Department of Psychology, University of Illinois at Urbana-Champaign, Champaign 61820, USA. dirwin@s.psych.uiuc.edu

Perception & Psychophysics
|September 25, 2002
PubMed
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Scene representations are sparse, holding about five items even after multiple fixations. Recently viewed objects are remembered well, indicating good short-term visual memory for scenes.

Area of Science:

  • Cognitive Psychology
  • Visual Perception

Background:

  • Understanding how the brain processes and retains visual scene information is crucial for cognitive science.
  • Previous research suggests that visual scene representations may be limited in capacity.

Purpose of the Study:

  • To investigate the characteristics of on-line scene representations.
  • To determine the capacity of visual scene memory across different fixation durations.

Main Methods:

  • Utilizing a partial-report procedure with varying fixation durations (1, 3, 5, 9, 15 fixations).
  • Subjects viewed simple scenes and reported cued object locations and identities shortly after scene offset.

Main Results:

  • Scene representations were found to be sparse, with memory for object position/identity pairings equivalent to approximately five items, even after extensive viewing.

Related Experiment Videos

  • Accurate recall was observed for recently attended objects (last three foveated and the next to be foveated).
  • Information accumulation was noted over multiple fixations, but the representation capacity remained limited to about five items.

    • Conclusions:

    • On-line scene representations are limited in capacity, approximately to five items.
    • Recently attended information within a visual scene is well-represented, suggesting effective short-term visual memory.
    • Findings have implications for current theories of visual scene representation and memory.