1999
DOI: 10.1037/0882-7974.14.3.520
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Models of intelligence in late life: Comment on Hultsch et al. (1999).

Abstract: The authors comment on D. F. Hultsch, C. Hertzog, B. J. Small, and R. A. Dixon's (1999) report of the latest results of the Victoria Longitudinal Study, which are presented as a test of the engagement hypothesis, and on their reanalysis of the data from the Veterans Study (Pushkar Gold et al., 1995), which proposes an alternative model of intellectual function. Differences between the methodologies, variables, and concepts of engaged lifestyle in the 2 studies lead to different tests of the engagement hypothes… Show more

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Cited by 28 publications
(39 citation statements)
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“…A number of studies have provided evidence for the influence of psychosocial factors on communication in general and narrative discourse in particular. Researchers suggest these factors may account for the individual differences observed in cognitive aging (Pushkar et al, 1999) as well as narrative performance (Arbuckle, Nohara-LeClair, & Pushkar, 2000; Pushkar et al, 2000). …”
Section: Discussionmentioning
confidence: 99%
“…A number of studies have provided evidence for the influence of psychosocial factors on communication in general and narrative discourse in particular. Researchers suggest these factors may account for the individual differences observed in cognitive aging (Pushkar et al, 1999) as well as narrative performance (Arbuckle, Nohara-LeClair, & Pushkar, 2000; Pushkar et al, 2000). …”
Section: Discussionmentioning
confidence: 99%
“…The brain network involved is extensive, including the prefrontal cortex and areas that subserve working memory and attentional processes (e.g., Gunning-Dixon and Raz, 2003; Raz et al, 1998), the striatal dopaminergic system and measures of episodic and procedural memories, perceptual speed and executive functioning more broadly (Bäckman et al, 2010), and the medial temporal lobe and structures associated with declarative memory (Jack et al, 1997). Some researchers emphasize the role of neurobiological processes in age-related decline (Hedden and Gabrieli, 2005), whereas others emphasize the importance of psychosocial factors (Pushkar et al, 1999). Although distinct, these two sets of factors need not be incompatible.…”
Section: The Far-reaching Effects Of Age-related Cognitive Declinementioning
confidence: 99%
“…However, the state of the collective research is inconsistent in demonstrating that stimulation provided by everyday cognitive and social activities facilitates the maintenance of cognitive skills in a manner analogous to physical exercise for musculoskeletal and cardiovascular functions (Salthouse et al, 2002). Several authors (e.g., Aartsen et al, 2002;Hultsch et al, 1999;Pushkar et al, 1999) have commented on the methodological difficulties in conducting studies that would meet the requirements of a convincing argument for a protective effect of activity on cognition (Salthouse et al, 2002). These requirements include demonstration of : (1) a negative relationship between age and level of activity, (2) a positive association between level of activity and level of cognition, and (3) an interaction between age and level of activity in the prediction of cognitive level (showing that activity level attenuates the impact of aging on cognition).…”
Section: Introductionmentioning
confidence: 98%