Adult Age, Information Processing, and Partial Report Performance

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Abstract
Previous investigations using the partial report technique for examining adult age differences in iconic memory have suggested that older adults are less able to extract information stored in the icon than are young adults. The present study examined the hypothesis that poorer partial report performance on the part of older adults involves age-related differences in the speed of visual and auditory information processing. Elderly (M = 67 years) and young (M = 23.5 years) adults were contrasted on partial report, whole report, backward masking, and choice reaction time tasks. Results indicated that the older age group exhibited a smaller partial report advantage than did their younger counterparts. This age difference was found to be related in part to increases with age in the time required to encode and identify visual stimuli but was not related to the time required to translate auditory cues into recall instructions. In other words, the slowdown in visual information processing speed that accompanies increased age contributes to age differences in performance on tasks involving iconic memory.

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