Reduced Benefit of Memory Elaboration in Older Adults with Subjective Memory Decline

2015 ◽  
Vol 47 (3) ◽  
pp. 705-713 ◽  
Author(s):  
Kerryn E. Pike ◽  
Amina Zeneli ◽  
Ben Ong ◽  
Sarah Price ◽  
Glynda J. Kinsella
2020 ◽  
Author(s):  
Francesca Farina ◽  
Marc Patrick Bennett ◽  
James William Griffith ◽  
Bert Lenaert

Evidence concerning the impact of fear of memory decline on health-related outcomes is limited. To determine the relationship between fear-avoidance of memory decline, quality of life and subjective memory in older adults using a novel scale to measure fear of memory decline. Sixty-seven older adults (59-81 years) completed a 23-item self-report questionnaire designed to capture experiential, cognitive and behavioral components of fear of memory decline, known as the fear and avoidance of memory decline (FAM) scale. Memory performance was assessed using the Wechsler Memory Scale (WMS-IV) and the Memory Failures Scale (MFS). General anxiety was assessed using the Depression, Anxiety and Stress Scales (DASS) and the Geriatric Anxiety Inventory (GAI). Quality of life was assessed using the Older Person’s Quality of Life scale (OPQOL-35). The FAM scale demonstrated good reliability and validity. Three latent factors were observed including: (1) fear-avoidance, (2) problematic beliefs and (3) resilience. After adjusting for age, education, memory performance and general anxiety, higher fear-avoidance predicted lower quality of life (p=.021) and increased memory failures (p=.022). Increased fear of memory decline predicts lower quality of life and subjective memory failures in healthy older adults. Based on these findings, we propose a preliminary fear-avoidance model that explains the development and maintenance of dementia-related functional disability in terms of psychological processes.


2021 ◽  
pp. 1-15
Author(s):  
Linda L. Chao ◽  
Jennifer A. Lee ◽  
Steven Martinez ◽  
Cody Barlow ◽  
Margaret A. Chesney ◽  
...  

Background: Preventing Loss of Independence through Exercise (PLIÉ) is a group movement program initially developed for people with mild-to-moderate dementia that integrates principles from several well-established traditions to specifically addresses the needs of people with cognitive impairment. Objective: To investigate whether PLIÉ would benefit cognitive and behavioral outcomes and functional brain connectivity in older adults with milder forms of cognitive impairment. Methods: Participants (≥55 y) with subjective memory decline (SMD) or mild cognitive impairment (MCI) were assessed with tests of cognitive and physical function, self-report questionnaires, and resting state functional magnetic resonance imaging (rs-fMRI) on a 3 Tesla scanner before and after participating in twice weekly PLIÉ classes for 12 weeks at the San Francisco Veterans Affairs Medical Center. Results: Eighteen participants completed the pre-post intervention pilot trial. We observed significant improvements on the Alzheimer’s Disease Assessment Scale cognitive subscale (ADAS-cog; effect size 0.34, p = 0.002) and enhanced functional connections between the medial prefrontal cortex (mPFC) and other nodes of the default mode network (DMN) after PLIÉ. Improvements (i.e., lower scores) on ADAS-cog were significantly correlated with enhanced functional connectivity between the mPFC and left lateral parietal cortex (Spearman’s ρ= –0.74, p = 0.001) and between the mPFC and right hippocampus (Spearman’s ρ= –0.83, p = 0.001). After completing PLIÉ, participants reported significant reductions in feelings of social isolation and improvements in well-being and interoceptive self-regulation. Conclusion: These preliminary findings of post-PLIÉ improvements in DMN functional connectivity, cognition, interoceptive self-regulation, well-being and reduced feelings of social isolation warrant larger randomized, controlled trials of PLIÉ in older adults with SMD and MCI.


2018 ◽  
Author(s):  
Nick Bott ◽  
Shefali Kumar ◽  
Caitlyn Krebs ◽  
Jordan M Glenn ◽  
Erica N Madero ◽  
...  

BACKGROUND A growing body of evidence supports the use of lifestyle interventions for preventing or delaying the onset of Alzheimer’s disease (AD) and other forms of dementia in at-risk individuals. The development of virtually delivered programs would increase the scalability and reach of these interventions, but requires validation to ensure similar efficacy to brick and mortar options. OBJECTIVE The aims of this study are to describe the study design, recruitment process, and baseline participant characteristics of the sample in the virtual cognitive health (VC Health) study. Future analyses will assess the impact of the remotely delivered lifestyle intervention on (1) cognitive function, (2) depression and anxiety, and (3) various lifestyle behaviors, including diet, exercise, and sleep in a cohort of older adults with subjective memory decline. Additional analyses will explore feasibility outcomes, as well as the participants’ engagement patterns with the program. METHODS Older adults (age 60-75) with subjective memory decline as measured by the Subjective Cognitive Decline (SCD-9) questionnaire, and who reported feeling worried about their memory decline, were eligible to participate in this single-arm pre-post study. All participants enrolled in the year-long virtual intervention, which consists of health coach-guided lifestyle change for improving diet, exercise, sleep, stress, and cognition. All components of this study were conducted virtually, including the collection of data and the administration of the intervention. Participants were assessed at baseline, 12 weeks, 24 weeks, and 52 weeks with online surveys and the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) test. Intention-to-treat analysis will be conducted on all outcomes. RESULTS A total of 85 participants enrolled in the intervention and 82 are included in the study sample (3 participants withdrew). The study cohort is 74% female, 88% Caucasian, 78% overweight or obese, and 67% have at least a college degree. The average baseline RBANS score was 95.9±11.1, which is within age-adjusted norms. The average SCD-9 score was 6.0±2.0, indicating minor subjective cognitive impairment at the beginning of the study. Average baseline Generalized Anxiety Disorder (GAD-7) scores were 6.2±4.5 and Patient Health Questionnaire (PHQ-9) scores were 8.5±4.9, indicating mild levels of anxiety and depression at baseline. CONCLUSIONS Virtually delivered lifestyle interventions may represent a scalable solution for the prevention or delay of AD. The results of this study will provide the first evidence for the efficacy of a fully remote intervention and lay the groundwork for future investigations. CLINICALTRIAL NCT02969460


2015 ◽  
Vol 11 (7S_Part_15) ◽  
pp. P707-P707
Author(s):  
Marina G. Cavuoto ◽  
Ben Ong ◽  
Kerryn E. Pike ◽  
Christian L. Nicholas ◽  
Glynda J. Kinsella

2021 ◽  
Vol 12 ◽  
Author(s):  
Youssef Bellaali ◽  
John L. Woodard ◽  
Bernard Hanseeuw ◽  
Adrian Ivanoiu

Objective: Alzheimer's disease (AD) begins with subtle memory decline, years before dementia onset. The presence of subjective memory complaints (SMC) has been proposed as a marker of preclinical AD. However, recent evidence has demonstrated early and progressive loss of awareness of memory difficulties in non-demented older adults harboring AD pathology. We investigated the respective contributions of SMC and spouse-appraised memory functioning (SAM) to predict memory decline in a large cohort of community dwelling older adults.Methods: The Wisconsin Longitudinal Study collected cognitive data from a community-based cohort of 3,583 participants in both 2005 and 2011. The participant and the participant's spouse were each asked to rate the participant's memory functioning using a Likert scale. We predicted change in objective episodic memory with models including baseline SMC, baseline SAM, or both SMC and SAM. We also evaluated an awareness index (SMC minus SAM). We then tested the interaction between Apolipoprotein E (APOE ε4) carrier status and SMC/SAM to evaluate whether the effects were driven by individuals at-risk for AD pathology.Results: In separate models, SMC (−0.081 ± 0.036, p = 0.025) and SAM (−0.084 ± 0.278, p = 0.003) were both associated with memory decline over ~6 years. However, the AI was not significantly associated with memory decline (0.031 ± 0.024, p = 0.19). When both predictors were included in the same model, SAM (−0.074 ± 0.03, p = 0.0092) was associated with memory decline, while SMC was not significant (−0.061 ± 0.04, p = 0.99). The association between SAM and memory decline was stronger in the APOE ε4 carriers than in the non-carriers (APOE-by-SAM interaction: F = 6.07; p = 0.002), and follow up analyses revealed that SAM was particularly predictive of decline only for APOE ε4 carriers. The association between SMC and memory decline was independent of APOE ε4 carrier status (APOE-by-SMC interaction: F = 2.29; p = 0.13).Conclusions: Spouse-appraised memory functioning was more predictive of memory decline than SMC or an awareness index, particularly in APOE ε4 carriers, who are at increased risk for AD pathology.


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