Impact of age, redundancy, and perceptual noise on visual search.

Journal Article (Journal Article)

We examined adult age differences in the impact of redundancy and perceptual noise during visual search. Using a two-choice, visual search task, subjects responded to letters presented in one to four corners of an imaginary display square. On each trial, one, two, or three instances of a given target letter were presented. In the target-plus-noise condition, all nontarget corners of the imaginary square were filled with distractor (i.e., noise) letters. In the target-only condition, all nontarget corners were left blank. The results indicated that older adults showed relatively greater redundancy benefits than the young adults for the target-plus-noise trials than for the target-only trials. These results are interpreted within an internal noise framework.

Full Text

Duke Authors

Cited Authors

  • Allen, PA; Madden, DJ; Groth, KE; Crozier, LC

Published Date

  • March 1992

Published In

Volume / Issue

  • 47 / 2

Start / End Page

  • P69 - P74

PubMed ID

  • 1538070

International Standard Serial Number (ISSN)

  • 0022-1422

Digital Object Identifier (DOI)

  • 10.1093/geronj/47.2.p69


  • eng

Conference Location

  • United States