scholarly journals Higher Awareness of Positive and Negative Age-Related Changes Relate to Lower Objective Cognitive Scores

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 597-598
Author(s):  
Serena Sabatini ◽  
Obioha Ukoumunne ◽  
Clive Ballard ◽  
Kaarin Anstey ◽  
Manfred Diehl ◽  
...  
Keyword(s):  
Cognitive Performance ◽  
Structural Equation ◽  
Subjective Experience ◽  
Equation Model ◽  
Model Fit ◽  
Self Awareness ◽  
Age Related ◽  
Objective Outcomes ◽  
Gains And Losses ◽  
Age Related Changes

Abstract Existing evidence suggests that individuals’ subjective experience of cognitive decline may be a risk state for dementia. However, whether self-awareness of positive changes confer cognitive protection is unknown. We examined the extent to which awareness of positive (AARC gains) and negative (AARC losses) age-related changes explains variability in objective cognitive performance in a sample of 6,231 UK residents (Mean age= 66.1 years, 75.9% women) without cognitive impairment. We tested a structural equation model with AARC gains and losses as predictors of cognitive performance and depressive symptoms as a mediator of the association of AARC losses with cognitive performance. The model fit the data well. The correlation between AARC gains and losses was negligible, yet higher levels of both AARC gains and losses predicted poorer cognitive scores. Hence, higher AARC gains did not confer cognitive protection. This unexpected pattern of results underscores the complexity of mapping individuals’ awareness onto objective outcomes.

Forced Zero Cross-Loading Misspecifications in Measurement Component of Structural Equation Models

Methodology ◽  
2014 ◽  
Vol 10 (4) ◽  
pp. 138-152 ◽  
Author(s):  
Hsien-Yuan Hsu ◽  
Susan Troncoso Skidmore ◽  
Yan Li ◽  
Bruce Thompson
Keyword(s):  
Structural Equation ◽  
Structural Model ◽  
Structural Equation Models ◽  
Equation Model ◽  
Model Fit ◽  
Model Specification ◽  
Simulation Design ◽  
Measurement Models ◽  
Fit Statistics ◽  
Path Coefficients

The purpose of the present paper was to evaluate the effect of constraining near-zero parameter cross-loadings to zero in the measurement component of a structural equation model. A Monte Carlo 3 × 5 × 2 simulation design was conducted (i.e., sample sizes of 200, 600, and 1,000; parameter cross-loadings of 0.07, 0.10, 0.13, 0.16, and 0.19 misspecified to be zero; and parameter path coefficients in the structural model of either 0.50 or 0.70). Results indicated that factor pattern coefficients and factor covariances were overestimated in measurement models when near-zero parameter cross-loadings constrained to zero were higher than 0.13 in the population. Moreover, the path coefficients between factors were misestimated when the near-zero parameter cross-loadings constrained to zero were noteworthy. Our results add to the literature detailing the importance of testing individual model specification decisions, and not simply evaluating omnibus model fit statistics.

scholarly journals Sleep Duration and Age-Related Changes in Brain Structure and Cognitive Performance

SLEEP ◽  
2014 ◽  
Vol 37 (7) ◽  
pp. 821-821 ◽  
Author(s):  
June C Lo ◽  
Kep Kee Loh ◽  
Hui Zheng ◽  
Sam K.Y. Sim ◽  
Michael W.L. Chee
Keyword(s):  
Cognitive Performance ◽  
Sleep Duration ◽  
Brain Structure ◽  
Age Related ◽  
Age Related Changes

Managing expectations: How stress, social support, and aging attitudes affect awareness of age-related changes

2019 ◽  
Vol 37 (3) ◽  
pp. 986-1007
Author(s):  
Erica L. O’Brien ◽  
Neika Sharifian
Keyword(s):  
Social Support ◽  
Online Survey ◽  
Well Being ◽  
Age Related ◽  
Aging Attitudes ◽  
Amazon's Mechanical Turk ◽  
And Function ◽  
Gains And Losses ◽  
Future Work ◽  
Age Related Changes

The degree to which social support (SS) moderates the effects of stress on self-perceptions of aging may depend on individual differences in general aging attitudes. We examined how stress, different types of SS, and general expectations regarding aging (ERA) affect awareness of age-related changes (AARCs). The sample included 137 adults (21–76 years; 56.2% women) who took an online survey on Amazon’s Mechanical Turk. Regression analyses showed differential moderation of stress effects due to ERA and the SS measure (perceived and received) and function (emotional and instrumental). Received emotional SS was only associated with AARC losses, whereas perceived support—both emotional and instrumental—was associated with AARC gains and losses. Findings may help guide future work aimed at promoting health and well-being in adulthood.

Exploring Socio-Economic Design Implications of Public Housing Transformation; The Nigerian Experience

2014 ◽  
Vol 584-586 ◽  
pp. 211-216 ◽  
Author(s):  
Abubakar D. Isah ◽  
Tareef Hayat Khan ◽  
Abdullah Sani Bn Ahmad
Keyword(s):  
Public Housing ◽  
Structural Equation ◽  
Equation Model ◽  
Model Fit ◽  
Design Stage ◽  
Survey Method ◽  
Economic Factors ◽  
Economic Predictors ◽  
Economic Indices ◽  
Socio Economic Factors

Occupancy and funding are crucial attributes of culture in predicting public housing transformation in Nigeria. The study investigates the implication of occupancy and funding as salient socio-economic factors of housing transformation. Questionnaire survey method was used to assess users’ experience which was analysed using statistical analysis with structural equation model (SEM). The result indicated a good model fit of occupancy and funding as socio-economic predictors that motivates residents’ housing adjustment decisions. Thus, the study recommends that socio-economic indices of occupancy and ease of funding future public housing adjustments can be considered by developers at the design stage.

scholarly journals Physical Fitness Plays a Crucial Mediator Role in Relationships Among Personal, Social, and Lifestyle Factors With Adolescents' Cognitive Performance in a Structural Equation Model. The Cogni-Action Project

2021 ◽  
Vol 9 ◽  
Author(s):  
Vanilson Lemes ◽  
Anelise R. Gaya ◽  
Kabir P. Sadarangani ◽  
Nicolas Aguilar-Farias ◽  
Fernando Rodriguez-Rodriguez ◽  
...  
Keyword(s):  
Physical Activity ◽  
Physical Fitness ◽  
Cognitive Performance ◽  
Structural Equation Model ◽  
Structural Equation ◽  
Sleep Problems ◽  
Equation Model ◽  
Cognitive Tasks ◽  
Fitness Components ◽  
Mediator Role

Background: The beneficial relationship between physical fitness and cognitive performance is affected and modulated by a wide diversity of factors that seem to be more sensitive during the development stage, particularly during early adolescence. This study aimed to examine the role of physical fitness considering the multivariate association between age, health-related quality of life (HRQOL), school vulnerability index (SVI), body mass index z-score (BMIz), physical activity, and sleep problems with the cognitive performance in boys and girls.Method: Participants were 1,196 adolescents aged 10–14 years (50.7% of boys) from Chile. Three physical fitness components and eight cognitive tasks were measured. BMIz was determined using growth references by age and sex, whereas questionaries were used to assess sleep problems, physical activity, and HRQOL. SVI was established according to the score given by the Chilean Government to educational establishments. We performed a structural equation model (SEM) to test multivariate associations among study' variables by sex.Results: Fitness was positively associated with boys' and girls' cognitive performance (β = 0.23 and β = 0.17; p = 0.001, respectively). Moreover, fitness presented a significant mediator role in the relationships between BMIz, SVI, and physical activity with cognitive performance (indirect effect). Additionally, SVI showed a negative association both direct and indirect effect in all three fitness components and all cognitive tasks, being this relationship stronger in girls than in boys.Conclusion: Our findings suggest that physical fitness and all its components play a crucial mediator role in the associations between several factors associated with adolescents' cognitive performance. Thereby, educational and health strategies should prioritise improving physical fitness through physical activity. They also should address other factors such as school vulnerability, obesity, and the early gender gap in a comprehensive approach boosting cognitive performance among early adolescents.Trial registration: Research Registry (ID: researchregistry5791).

scholarly journals I remember it like it was yesterday: Age-related changes in the subjective experience of remembering the past

2020 ◽  
Author(s):  
Adrien Folville ◽  
Jon Simons ◽  
Arnaud D'Argembeau ◽  
Christine Bastin
Keyword(s):  
Older Adults ◽  
Young Adults ◽  
Conceptual Knowledge ◽  
Subjective Experience ◽  
Brain Regions ◽  
Future Research ◽  
Subjective Ratings ◽  
Neural Basis ◽  
Age Related ◽  
Age Related Changes

It has been frequently described that older adults subjectively report the vividness of their memories as being as high, or even higher, than young adults, despite poorer objective memory performance and/or lower activity in the associated brain regions. Here, we review studies that examined age-related changes in the cognitive and neural basis of the subjective experience of remembering. Together, these studies reveal that older adults assign subjective memory ratings that are as high or higher than young adults but rely on retrieved memory details to a lesser extent. We discuss potential mechanisms underlying this observation. Overestimation of subjective ratings may stem from metamemory changes, psycho-social factors or methodological issues. As for poorer calibration of the ratings, this may be explained by the fact that older adults rely on/weight other types of information (conceptual knowledge, personal memories, and socioemotional or gist aspects of the memory trace) to a greater extent than young adults when judging the subjective vividness of their memories. We further highlight that a desirable avenue for future research would be to investigate how subjective ratings follow the richness of the corresponding mental representations in other cognitive operations than episodic memory and in other populations than healthy older adults. Finally, we recommend that future studies explore the bases of the subjective sense of remembering across the lifespan while considering recent accounts focusing both on individual and collective/shared aspects of recollection.

scholarly journals International relevance of Two Measures of Awareness of Age-Related Change (AARC)

2020 ◽  
Author(s):  
Serena Sabatini ◽  
Obioha C Ukoumunne ◽  
Clive Ballard ◽  
Allyson Brothers ◽  
Roman Kaspar ◽  
...  
Keyword(s):  
Cognitive Functioning ◽  
Convergent Validity ◽  
Demographic Variables ◽  
Cognitive Health ◽  
Age Related ◽  
Males And Females ◽  
University Degree ◽  
Gains And Losses ◽  
Functioning Subscale ◽  
Age Related Changes

Abstract Background: A questionnaire assessing awareness of positive and negative age-related changes (AARC gains and losses) was developed in the US and Germany. We validated the short form of the measure (AARC-10 SF) and the cognitive functioning subscale from the 50-item version of the AARC (AARC-50) questionnaire in the UK population aged 50 and over.Methods: Data from 14,797 participants in the “blind for review” cohort were used to explore and confirm the psychometric properties of the AARC measures including: validity of the factor structure; reliability; measurement invariance across males and females and across individuals with and without a university degree; and convergent validity with measures of self-perception of aging and mental, physical, and cognitive health. We also explored the relationship between demographic variables and AARC.Results: We confirmed the two-factor structure (gains and losses) of the AARC-10 SF and the AARC-50 cognitive functioning subscale. Both scales showed good reliability and convergent validity. The meaning of AARC gains and losses was the same across males and females and across individuals with and without a university degree. Items composing AARC scales had the same meaning across individuals with and without a university degree. Items composing the AARC-50 cognitive functioning subscale had the same meaning across males and females. Two items in the AARC-10 SF had different meaning across males and females. Demographic variables significantly predicted AARC gains and losses.Conclusions: The AARC-10 SF and AARC-50 cognitive functioning subscale can help to identify UK individuals who perceive age-related changes in their mental, physical, and cognitive health.

Sign in / Sign up

Export Citation Format

Share Document