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Age-related deficits in generation and manipulation of mental images: I. The role of sensorimotor speed and working memory
Author(s)Susan D Briggs, Naftali Raz, William Marks
Journal titlePsychology and Aging, vol 14, no 3, September 1999
Pagespp 427-435
KeywordsCognitive processes ; Memory and Reminiscence ; Mental speed ; Older people ; Adults ; United States of America.
AnnotationAge-related slowing of information processing in mental imagery tasks were investigated in this study. Eighty-five adults aged between 18 and 77 performed a visual, sensorimotor, reaction-time task; a visual-perceptual choice reaction task; and three mental imagery tasks that varied in apparent difficulty and involved stimuli at two levels of graphic complexity. Age was associated with prolongation of response time across all tasks and both levels of stimulus complexity. Accuracy of response was adversely affected by increase in stimulus complexity in all tasks, whereas it was negatively related to age only on the tasks with substantial mental imagery requirements. Slowing of information processing and reduction in accuracy were mediated by declines in working memory but not by decrease of sensorimotor speed. (AKM).
Accession NumberCPA-000114232 A
ClassmarkDA: DB: DG: B: SD: 7T

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