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Age-related effects in the marking of old objects in visual search
Author(s)Arthur F Kramer, Paul Atchley
Journal titlePsychology and Aging, vol 15, no 2, June 2000
Pagespp 286-296
KeywordsCognitive processes ; Mental speed ; Young adults [20-25] ; Age groups [elderly] ; United States of America.
AnnotationVisual marking is a limited capacity process that enhances visual search through the inhibition of old objects. In Experiment 1 of two, young and old adults performed three different search conditions: a full-element baseline, a half-element baseline, and a gap condition in which they searched through displays similar to the full element baseline, but with gaps and distractors in the presentation. Both old and young displayed search slopes in the gap condition that were equivalent to slopes obtained in the half-element condition, suggesting that they were able to successfully inhibit the old letters. In Experiment 2, old and young adults also performed in three different visual search conditions, but in this case with targets defined either by a form difference or by a conjunction of form and colour. Both groups showed a reduced slope in the gap as compared with the conjunction condition, suggesting inhibition of the old objects. The data are discussed in terms of age-related differences in the top-down control of attention to visual search. (RH).
Accession NumberCPA-001024208 A
ClassmarkDA: DG: SD6: BB: 7T

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