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Do Cognitive and Physical Functions Age in Concert from Age 70 to 76?: Evidence from the Lothian Birth Cohort 1936

Published on Jan 1, 2017in Spanish Journal of Psychology0.75
· DOI :10.1017/sjp.2016.85
Stuart J. Ritchie23
Estimated H-index: 23
(Edin.: University of Edinburgh),
Elliot M. Tucker-Drob27
Estimated H-index: 27
+ 1 AuthorsIan J. Deary121
Estimated H-index: 121
(Edin.: University of Edinburgh)
Abstract
The present study concerns the relation of mental and bodily characteristics to one another during ageing. The ‘common cause’ theory of ageing proposes that declines are shared across multiple, seemingly-disparate functions, including both physical and intellectual abilities. The concept of ‘reserve’ suggests that healthier cognitive (and perhaps bodily) functions from early in life are protective against the effects of senescence across multiple domains. In three waves of physical and cognitive testing data from the longitudinal Lothian Birth Cohort 1936 (n = 1,091 at age 70 years; n = 866 at 73; n = 697 at 76), we used multivariate growth curve modeling to test the ‘common cause’ and ‘reserve’ hypotheses. Support for both concepts was mixed: although levels of physical functions and cognitive functions were correlated with one another, physical functions did not decline together, and there was little evidence for shared declines in physical and mental functions. Early-life intelligence, a potential marker of system integrity, made a significant prediction of the levels, but not the slopes, of later life physical functions. These data suggest that common causes, which are likely present within cognitive functions, are not as far-reaching beyond the cognitive arena as has previously been suggested. They also imply that bodily reserve may be similar to cognitive reserve in that it affects the level, but not the slope, of ageing-related declines.
  • References (38)
  • Citations (4)
References38
Newest
#1Ola Sternäng (RMIT: RMIT University)H-Index: 6
#2Chandra A. Reynolds (UCR: University of California, Riverside)H-Index: 38
Last.Anna K. Dahl Aslan (KI: Karolinska Institutet)H-Index: 10
view all 6 authors...
#1Richard Dodds (University of Southampton)H-Index: 10
#2Holly E. Syddall (University of Southampton)H-Index: 46
Last.Carol Jagger (Newcastle University)H-Index: 56
view all 19 authors...
#1Stuart J. Ritchie (Edin.: University of Edinburgh)H-Index: 23
#2Elliot M. Tucker-Drob (University of Texas at Austin)H-Index: 27
Last.Ian J. Deary (Edin.: University of Edinburgh)H-Index: 121
view all 3 authors...
#1Elliot M. Tucker-Drob (University of Texas at Austin)H-Index: 27
#2Daniel Andrew Briley (University of Texas at Austin)H-Index: 14
Last.Ian J. Deary (Edin.: University of Edinburgh)H-Index: 121
view all 4 authors...
#1Sean Clouston (Medical Research Council)H-Index: 13
#2Paul Brewster (UVic: University of Victoria)H-Index: 5
Last.Scott M. Hofer (UVic: University of Victoria)H-Index: 39
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Cited By4
Newest
#1Simon R. Cox (Edin.: University of Edinburgh)H-Index: 17
#2Stuart J. Ritchie (Edin.: University of Edinburgh)H-Index: 23
Last.Sarah E. Harris (Edin.: University of Edinburgh)H-Index: 4
view all 11 authors...
#1Andrea R. Zammit (Albert Einstein College of Medicine)H-Index: 6
#2Annie Robitaille (UQAM: Université du Québec à Montréal)H-Index: 9
Last.Scott M. Hofer (OHSU: Oregon Health & Science University)H-Index: 39
view all 5 authors...
#1Elliot M. Tucker-Drob (University of Texas at Austin)H-Index: 27
#2Andreas M. Brandmaier (MPG: Max Planck Society)H-Index: 12
Last.Ulman Lindenberger (MPG: Max Planck Society)H-Index: 77
view all 3 authors...
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