Faculty Opinions recommendation of Older adults' associative deficit in episodic memory: assessing the role of decline in attentional resources.

Author(s):  
Andrew Yonelinas
2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 278-279
Author(s):  
Feilong Wang ◽  
Shijie Li ◽  
Kaifa Wang ◽  
Yanni Yang

Abstract Older adults with subjective memory complaints (SMCs) are at increased risk for episodic memory decline. Episodic memory decline is an important predictor of objective memory impairment (one of the earliest symptoms of Alzheimer’s disease) and an often-suggested criterion of successful memory aging. Therefore, it is important to explore the determinant factors that influence episodic memory in older adults with SMCs. Roy adaptation model and preliminary evidence suggest that older adults with SMCs undergo a coping and adaptation process, a process influenced by many health-related risks and protective factors. This study aimed to explore the relationship between coping capacity and episodic memory, and the mediating role of healthy lifestyle between coping capacity and episodic memory in a sample of 309 community-dwelling older adults with SMCs. Results from the structural equation modeling showed that coping capacity directly affects episodic memory (r=0.629, p<0.001), and there is a partial mediating effect (60.5%) of healthy lifestyle among this sample of older adults with SMCs. This study demonstrates that coping capacity and adaptation positively correlate with episodic memory in older adults with SMCs, and that these correlations are mediated by healthy lifestyle. The results suggest that older adults with poor coping capacity should be assessed and monitored regularly, and clear lifestyle-related interventions initiated by healthcare providers that promote healthy lifestyles may effectively improve coping capacity and episodic memory in this population group. Note: First author: Feilong Wang, Co-first author: Shijie li, Corresponding author: Yanni Yang


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S233-S233
Author(s):  
Theresa Gmelin ◽  
Stacy L Andersen ◽  
Robert M Boudreau ◽  
Kaare Christensen ◽  
Mary K Wojczynski ◽  
...  

Abstract Older adults are vulnerable to negative recent life events (RLE) which deplete attentional resources and leads to cognitive exhaustion. Adaptive coping styles reduce perceived stress severity but their role on cognitive tiredness is unknown. We examined RLE and coping styles on perceived mental fatigability (Pittsburgh Fatigability Scale (PFS), 0-50pts, higher=greater fatigability) in the Long Life Family Study (N=1464, age=74.7±12.6, female=57.7%, 43.9% ≥1 major RLE past 6 months, 27.8% higher mental fatigability≥13). All analyses adjusted for family structure, field center, age, and sex. PFS mental scores correlated with all NEO-FFI (60-item, 5-domain) personality traits representing maladaptive (neuroticism r=0.25 p<.0001) and adaptive (conscientiousness r=-0.18, extraversion r=-0.24, p<.00001) coping. Having ≥1RLE was associated with higher mental fatigability (OR=1.4, 95% CI:1.2,1.8, p=.0004); adjustment for neuroticism (OR=1.3, 95% CI:0.9,1.7, p=.06) attenuated the association. Education on adaptive coping may be a modifiable skill that allows older adults to maintain lower perceived mental fatigability despite stressful events.


2020 ◽  
Author(s):  
Chi Ngo ◽  
Nora Newcombe

Episodic memory binds together diverse elements of an event into a cohesive unit. This property enables the reconstruction of multidimensional experiences when triggered by a cue related to a past event via pattern completion processes. Such holistic retrieval is evident in young adults, as shown by dependency in the retrieval success for different associations from the same event (Horner & Burgess, 2013, 2014). Aspects of episodic memory capacity are vulnerable to aging processes, as shown by reduced abilities to form linkages within an event through relational binding (associative deficit hypothesis: Naveh-Benjamin, 2002). However, prior work has not examined whether this reduction affects holistic retrieval in typical aging. Here, we leveraged dependency analyses to examine whether older adults remember or forget events holistically, and whether the degree of holistic retrieval declines with old age. We found evidence for continued holistic retrieval, because accuracy for one aspect of an event predicted accuracy for other aspects of the same event. Younger and older adults did not differ in the degree of holistic recollection, despite robust age-related differences in relational binding. However, within the group of older adults, holistic recollection showed a significant decline with advancing age, controlling for pairwise relational binding performance, verbal IQ, and general cognitive status. These results suggest that a decline in holistic retrieval is an aspect of episodic memory decrements later in cognitive aging.


2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 415-416
Author(s):  
Changmin Peng ◽  
Jeffrey Burr ◽  
Sae Hwang Han ◽  
Kyungmin Kim ◽  
Jan Mutchler

Abstract We lack knowledge about the underlying mechanisms that link formal volunteering to cognitive health. Friendships can be formed and improved through volunteering. Friendship is also beneficial to cognitive health as it often involves sharing information and promoting social interactions. This study investigated the potential mediating role of friendship (i.e., the number of close friends and the quality of friendships) for the association between volunteering (i.e., volunteering status and volunteering hours) and episodic memory among middle-aged and older adults in the United States, using data from the 2014 wave of the Health and Retirement Study (N = 6,029). Moderated mediation models were employed to test the mediation role of friendship for the association between volunteering and cognition for two age groups, middle-aged adults (age 50-64, n = 2,441) and older adults (age 65+, n = 3,588). The results showed that the quality of friendships, but not the number of close friends, mediated the relationship between volunteering (both status and hours) and episodic memory for middle-aged adults. However, mediation effects of friendship were not discovered for older adults. Our findings emphasize the important role of the quality of friendship in understanding the cognitive benefit of volunteering among middle-aged adults. For older adults, the nonsignificant effects of friendship may be consistent with socioemotional selectivity theory, suggesting that older adults may not use volunteering to expand their social networks. Instead, they may participate in volunteer work for other reasons in the context of shrinking social networks.


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