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Object-based attentional selection and aging.

A F Kramer1, T A Weber

  • 1Beckman Institute, University of Illinois at Urbana-Champaign 61801, USA. akramer@s.psych.uiuc.edu

Psychology and Aging
|May 4, 1999
PubMed
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Object-based attentional selection, which focuses attention on objects, was examined in young and older adults. Both age groups demonstrated similar object-based attentional selection, indicating it is unaffected by normal aging.

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Human Factors

Background:

  • Selective attention models propose different mechanisms for how we prioritize information.
  • Space-based models suggest attention is allocated to spatial regions.
  • Object-based models propose attention is allocated to entire objects.

Purpose of the Study:

  • To investigate age-related differences in object-based attentional selection.
  • To compare performance between space-based and object-based attention models.
  • To determine if normal aging impacts object-based attentional selection.

Main Methods:

  • Two studies were conducted using visual search tasks with wrench stimuli.
  • Participants identified target properties (e.g., open end, hexagonal end) on wrenches.

Related Experiment Videos

  • Target properties were either on a single wrench or distributed across two wrenches.

    • Main Results:

    • Performance was better when target properties were on a single object compared to distributed objects.
    • Results supported object-based attentional selection models over space-based models.
    • Both young and older adults exhibited similar performance patterns.

    Conclusions:

    • Object-based attentional selection is a robust mechanism.
    • Normal aging does not appear to impair object-based attentional selection.
    • Findings contribute to understanding attentional processes across the lifespan.