Age-related decline of visual processing components in change detection.

Published

Journal Article

Previous research has suggested that an age-related decline in change detection may be due to older adults using a more conservative response criterion. However, this finding may reflect methodological limitations of the traditional change detection design, in which displays are presented continuously until a change is detected. Across 2 experiments, the authors assessed adult age differences in a version of change detection that required a response after each pair of pre- and postchange displays, thus reducing the potential contribution of response criterion. Older adults performed worse than younger adults, committing more errors and requiring a greater number of display cycles for correct detection. These age-related performance declines were substantially reduced after controlling statistically for elementary perceptual speed. Search strategy was largely similar for the 2 age groups, but perceptual speed was less successful in accounting for age-related variance in detectability when a more precise spatial localization of change was required (Experiment 2). Thus, the negative effect of aging in the present tasks lies in a reduction of detection efficiency due largely to processing speed, though some strategy-level effects may also contribute. (PsycINFO Database Record (c) 2010 APA, all rights reserved).

Full Text

Duke Authors

Cited Authors

  • Costello, MC; Madden, DJ; Mitroff, SR; Whiting, WL

Published Date

  • June 2010

Published In

Volume / Issue

  • 25 / 2

Start / End Page

  • 356 - 368

PubMed ID

  • 20545420

Pubmed Central ID

  • 20545420

Electronic International Standard Serial Number (EISSN)

  • 1939-1498

Digital Object Identifier (DOI)

  • 10.1037/a0017625

Language

  • eng

Conference Location

  • United States