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Stability, Growth, and Decline in Adult Life Span Development of Declarative Memory: Cross-Sectional and Longitudinal Data From a Population-Based Study
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2005 (English)In: Psychology and Aging, ISSN 0882-7974, Vol. 20, no 1, 3-18 p.Article in journal (Refereed) Published
Abstract [en]

Five-year changes in episodic and semantic memory were examined in a sample of 829 participants (35-80 years). A cohort-matched sample (N=967) was assessed to control for practice effects. For episodic memory, cross-sectional analyses indicated gradual age-related decrements, whereas the longitudinal data revealed no decrements before age 60, even when practice effects were adjusted for. Longitudinally, semantic memory showed minor increments until age 55, with smaller decrements in old age as compared with episodic memory. Cohort differences in educational attainment appear to account for the discrepancies between cross-sectional and longitudinal data. Collectively, the results show that age trajectories for episodic and semantic memory differ and underscore the need to control for cohort and retest effects in cross-sectional and longitudinal studies, respectively.

Place, publisher, year, edition, pages
2005. Vol. 20, no 1, 3-18 p.
Keyword [en]
adult life span development, declarative memory, episodic memory, semantic memory, aging, age differences, Block Design, Mini Mental State Examination
National Category
URN: urn:nbn:se:su:diva-13536DOI: doi:10.1037/0882-7974.20.1.3OAI: diva2:180056
Available from: 2008-04-10 Created: 2008-04-10 Last updated: 2011-01-12Bibliographically approved

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Nilsson, Lars-Göran
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