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Age-related differences in selection by visual saliency.

Kamen A Tsvetanov1, Carmel Mevorach, Harriet Allen

  • 1School of Psychology, University of Birmingham, Birmingham, B15 2TT, UK, k.tsvetanov@bham.ac.uk.

Attention, Perception & Psychophysics
|July 2, 2013
PubMed
Summary

Older adults struggle with visual selection, especially when ignoring salient distractors. This age-related decline in nonspatial attention affects processing hierarchical stimuli.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience of Aging
  • Visual Perception

Background:

  • Visual selection involves prioritizing targets and ignoring distractors.
  • Hierarchical stimuli require attention at global or local levels.
  • Perceptual saliency influences attentional capture.

Purpose of the Study:

  • To investigate age-related differences in nonspatial visual selection.
  • To examine how perceptual saliency affects older adults' ability to ignore distractors in hierarchical stimuli.
  • To determine if attentional declines are specific to global or local processing levels.

Main Methods:

  • Older and younger adults performed visual selection tasks with hierarchical stimuli.
  • Stimuli varied in perceptual saliency at global and local levels.
  • Participants identified targets at either the global or local level.

Main Results:

  • Older adults were less efficient than younger adults at ignoring salient distractors.
  • This difficulty occurred regardless of whether selection was global or local.
  • Age-related deficits in distractor rejection persisted even after performance scaling.

Conclusions:

  • Evidence suggests an age-related decline in nonspatial attentional selection of low-salient hierarchical stimuli.
  • This decline is not specific to global or local processing levels.
  • Findings highlight the impact of aging on visual attention and saliency interactions.