Abstract
Twenty-one older and 21 younger adults were administered a series of visual attention tasks. A series of quantitative models was applied to each observer's data to determine whether he or she performed optimally or suboptimally or showed a deficit-in-attentional processing. The results suggested that (a) older and younger observers were affected equally by the integrality-separability manipulation, (b) there are no age-related differences in selective attention performance for either integral or separable-dimension stimuli, (c) there are no age-related differences in dimensional integration performance with separable-dimension stimuli, and (d) older observers were more likely to be suboptimal when asked to integrate information from integral-dimension stimuli. Implications for current theories of attentional processing in normal aging are discussed.
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