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Remember this : Age moderation of genetic and environmental contributions to verbal episodic memory from midlife through late adulthood

Luczak, S. E. (författare)
Department of Psychology, University of Southern California, Los Angeles, CA, United States
Beam, C. R. (författare)
Department of Psychology, University of Southern California, Los Angeles, CA, United States
Pahlen, S. (författare)
Department of Psychology, University of California, Riverside, Riverside, CA, United States
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Lynch, M. (författare)
Department of Psychology, University of Southern California, Los Angeles, CA, United States
Pilgrim, M. (författare)
Department of Psychology, University of Southern California, Los Angeles, CA, United States
Reynolds, C. A. (författare)
Department of Psychology, University of California, Riverside, Riverside, CA, United States
Panizzon, M. S. (författare)
Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
Catts, V. S. (författare)
Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
Christensen, K. (författare)
The Danish Twin Registry, Department of Public Health, University of Southern Denmark, Denmark
Finkel, Deborah (författare)
Jönköping University,HHJ, Institutet för gerontologi,HHJ. ARN-J (Aging Research Network - Jönköping),Center for Economic and Social Research, University of Southern California, Los Angeles, CA, United States
Franz, C. E. (författare)
Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
Kremen, W. S. (författare)
Department of Psychiatry, University of California, San Diego, San Diego, CA, United States
Lee, T. (författare)
Centre for Healthy Brain Ageing (CHeBA), Discipline of Psychiatry and Mental Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
McGue, M. (författare)
Department of Psychology, University of Minnesota, Minneapolis, MN, United States
Nygaard, M. (författare)
The Danish Twin Registry, Department of Public Health, University of Southern Denmark, Denmark
Plassman, B. L. (författare)
Departments of Psychiatry and Neurology, Duke University, Durham, NC, United States
Whitfield, K. E. (författare)
Department of Psychology and Brain and Health, University of Nevada Las Vegas, Las Vegas, NV, United States
Pedersen, N. L. (författare)
Karolinska Institutet
Gatz, M. (författare)
Center for Economic and Social Research, University of Southern California, Los Angeles, CA, United States
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 (creator_code:org_t)
Elsevier, 2023
2023
Engelska.
Ingår i: Intelligence. - : Elsevier. - 0160-2896 .- 1873-7935. ; 99
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
http://kipublication...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • It is well documented that memory is heritable and that older adults tend to have poorer memory performance than younger adults. However, whether the magnitudes of genetic and environmental contributions to late-life verbal episodic memory ability differ from those at earlier ages remains unresolved. Twins from 12 studies participating in the Interplay of Genes and Environment in Multiple Studies (IGEMS) consortium constituted the analytic sample. Verbal episodic memory was assessed with immediate word list recall (N = 35,204 individuals; 21,792 twin pairs) and prose recall (N = 3805 individuals; 2028 twin pairs), with scores harmonized across studies. Average test performance was lower in successively older age groups for both measures. Twin models found significant age moderation for both measures, with total inter-individual variance increasing significantly with age, although it was not possible definitively to attribute the increase specifically to either genetic or environmental sources. Pooled results across all 12 studies were compared to results where we successively dropped each study (leave-one-out) to assure results were not due to an outlier. We conclude the models indicated an overall increase in variance for verbal episodic memory that was driven by a combination of increases in the genetic and nonshared environmental parameters that were not independently statistically significant. In contrast to reported results for other cognitive domains, differences in environmental exposures are comparatively important for verbal episodic memory, especially word list learning.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Annan medicin och hälsovetenskap -- Gerontologi, medicinsk/hälsovetenskaplig inriktning (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Other Medical and Health Sciences -- Gerontology, specialising in Medical and Health Sciences (hsv//eng)

Nyckelord

Aging
Twin studies
Verbal episodic memory

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

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