Experimental Aging Research最新文献

Introduction: Age simulation suits are increasingly used in health care education. However, empirical evidence that quantifies the simulated performance losses in established geriatric tests and compares those declines with reference data of older adults is scarce.

Methods: In a standardized lab setting, we compared performance of N = 61 participants (46 middle-aged, 15 young adults) with and without age simulation suit, for example in the Timed Up and Go Test (+dual task), Short Physical Performance Battery, grip strength, and 30-Second-Chair- Standing Test. Additionally, we compared the results with suit to established reference values of older adults in different age groups.

Results: Reduced performance was observed in both groups when wearing the suit, yet to different degrees dependent on the assessment and user age. For one, larger declines were observed in more challenging and complex tasks across age groups. In addition, comparisons with reference values revealed age-differential "instant aging" effects.

Discussion: A simulated "fourth age," where frailty and impairments are accumulating, was not reached in the majority of assessments, especially not among younger participants. In conclusion, existing age simulation suits may have some educational and empathy potential, but so far, they fail in simulating the age period with most serious functional loss.

Emotional intelligence includes an assortment of factors related to emotion function. Such factors involve emotion recognition (in this case via facial expression), emotion trait, reactivity, and regulation. We aimed to investigate how the subjective appraisals of emotional intelligence (i.e. trait, reactivity, and regulation) are associated with objective emotion recognition accuracy, and how these associations differ between young and older adults. Data were extracted from the CamCAN dataset (189 adults: 57 young/118 older) from assessments measuring these emotion constructs. Using linear regression models, we found that greater negative reactivity was associated with better emotion recognition accuracy among older adults, though the pattern was opposite for young adults with the greatest difference in disgust and surprise recognition. Positive reactivity and depression level predicted surprise recognition, with the associations significantly differing between the age groups. The present findings suggest the level to which older and young adults react to emotional stimuli differentially predicts their ability to correctly identify facial emotion expressions. Older adults with higher negative reactivity may be able to integrate their negative emotions effectively in order to recognize other's negative emotions more accurately. Alternatively, young adults may experience interference from negative reactivity, lowering their ability to recognize other's negative emotions.

Descriptive research on work ability is well advanced. However, literature is still far from explaining its consequences. Besides, Turkish literature has been quite limited in terms of considering the work ability concept. In the research, the work ability index, and task performance scale were adapted to Turkish. The research was patterned with quantitative method. According to findings, the improvement of work ability levels and increase in job satisfaction and task performance are related in the same direction. Moreover, work ability positively contributes to directly predicting job satisfaction and task performance. Furthermore, work ability positively contributes to indirectly predicting task performance through job satisfaction. This mediation effect, determined for the first time, is an important research finding regarding its contribution to literature. Apart from these, there are significant differences in work ability among age groups, and certain age group categories have a moderating effect on the relationship between work ability and task performance. This study demonstrated that work ability index is a valid and reliable tool for the Turkish sample. Besides, the study provides holistic findings thanks to work ability levels and direct and indirect effect analysis. The theoretical and practical implications were discussed, and directions were made to further research.

Background and aim: Social factors play a crucial role in the quality of life of + 50 adults. This study aimed to investigate the association between social support, depression, and loneliness and the health-related quality of life in + 50 adults of Ardakan.

Methods: This was a cross-sectional study from the first phase of Ardakan Cohort Study on Aging (ACSA) in 2019. Health-Related Quality of Life (HRQoL, SF-16), Duke Social Support Index (DSSI), and Center for Epidemiologic Studies Depression Scale (CES-D10) were used to assess the variables of interest. Multivariable linear regression was used to model the associated factors with the score of the SF-16 tool in two dimensions; physical (PCS) and mental (MCS).

Findings: A total of 5197 over 50 years individuals included in this study; The mean age was 62.2 ± 7.3 years old, and 52% were male. The mean score for PCS and MCS subscales was 45.6 (95% CI 45.4 to 45.9) and 49.3 (95% CI 49.0 to 49.5), respectively. Adjusted for other variables, having less feeling level of loneliness, and not having depressive symptoms were related to better PCS and MCS scores.

Conclusion: The HRQoL for the mental aspect of HRQoL was better than the physical in elder populations. Also, much more focus should be paid to older adults who experience inadequate social support, higher levels of loneliness, and depressive symptoms.

The ability to predict collisions with moving objects deteriorates with aging. We followed the affordance-based model to identify optical variables that older adults had difficulty using for collision prediction. We reproduced a modified version of the interception task used in Steinmetz (Steinmetz, Layton, Powell, & Fajen, 2020, "Affordance-based versus current - future accounts of choosing whether to pursue or abandon the chase of a moving target," Journal of Vision, 20(3), 8) in a virtual reality (VR) environment and newly introduced perturbation for each of three optical variables (vertical and horizontal expansions of a moving object and the bearing angle produced between participants and a moving object). We expected that perturbation would negatively affect the performance only for those who rely on the optical variable to perform the interception task effectively. We tested 18 older and 15 younger adults and showed that older participants were not negatively affected by the perturbation for the vertical and horizontal expansion of a moving object, while they showed decreased performance when the perturbation was introduced with a bearing angle. These findings suggest that predicting collisions with moving objects deteriorates with aging because the perception of object expansion is impaired with aging.

Objectives: In view of the fallout of the COVID-19 pandemic, psychologists face a challenge to document the pandemic-related change in emotional well-being of individuals and groups and evaluate the emotional response to this fallout over time.

Methodsp: We contribute to this goal by analyzing the new CoSoWELL corpus (version 2.0), an 1.8 million-word collection of narratives written by over 1,300 older adults (55+ y.o.) in eight sessions before, during and after the global lockdown. In the narratives, we examined a range of linguistic variables traditionally associated with emotional well-being and observed signs of distress, i.e., lower positivity and heightened levels of fear, anger, and disgust.

Results: In most variables, we observed a characteristic timeline of change, i.e., a delayed (by 4 months) and abrupt drop in optimism and increase in negative emotions that reached its peak about 7 months after the lockdown and returned to pre-pandemic levels one year after. Our examination of risk factors showed that higher levels of self-reported loneliness came with elevated levels of negative emotions but did not change the timeline of emotional response to the pandemic.

Conclusions: We discuss implications of the findings for theories of emotion regulation.

Archival records of US Masters Swimming performances were examined for changes between 1981 and 2021. Both national records and top 10 swimmers were used. Substantial secular changes were found averaging 0.52%/yr, with women improving more than men and with improvements in national records greater than in the top 10. Performances by women in 2021 were at parity (national records) or near parity (top 10) with men in 1981. The results indicate that secular effects must be considered along with longitudinal age-related changes and cross-sectional cohort effects in interpreting age differences in physiological function.

Objectives: This study investigated whether race and sex moderated the relations of religious coping to telomere length (TL), a biomarker of cellular aging implicated in race-related health disparities.

Methods: Participant data were drawn from the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study, which included 252 socioeconomically diverse African American and White men and women aged (30-64 years old). Cross-sectional multivariable regression analyses examined interactive associations of religious coping, race, and sex to TL, adjusting for other sociodemographic characteristics.

Results: Religious coping was unrelated to TL in this sample (p's > .05). There were no notable race or sex differences. Post hoc exploratory analyses similarly found that neither secular social support coping use nor substance use coping was associated with TL.

Conclusion: There was no evidence to support that religious coping use provided protective effects to TL in this sample of African American and White women and men. Nevertheless, future studies should use more comprehensive assessments of religious coping and intersectional identities to provide an in-depth examination of religiosity/spirituality as a potential culturally salient protective factor in cellular aging among African Americans in the context of specific chronic stressors such as discrimination.

Research question: Are semantic impairments in Alzheimer's disease (AD) partially due to deficits in spatial attention?

Methods and results: In a target detection task, both older adults (OAs) and AD individuals were facilitated by valid spatial cues, but only OAs were impaired by invalid cues compared to neutral. In a reading task, spatial cues validly or invalidly cued the location of pictures, which were related or unrelated to subsequent, centrally presented, words. OAs showed semantic priming only after valid cues, whereas AD individuals showed priming after valid and invalid cues.

Discussion: Failure to inhibit uncued locations results in processing of potentially distracting semantic information in AD.

The present study was conducted to investigate the effects of Ocimum basilicum L. (OB) extract on learning and memory impairment in aged rats. Male rats were divided into the following experimental groups: Group 1 (control): including 2 months old rats, Group 2 (aged) including 2 years old rats, Groups 3-5 (aged-OB): including 2 years old rats received 50, 100, and 150 mg/kg OB for 8 weeks by oral gavage. Aging increased the delay to find the platform but, however, decreased the time spent in the target quadrant when tested by Morris water maze (MWM). Aging also reduced the latency to enter the dark chamber in the passive avoidance (PA) test compared to the control group. Moreover, interleukin-6 (IL-6) and malondialdehyde (MDA) levels were raised in the hippocampus and cortex of aged rats. In contrast, thiol levels and enzymatic activity of superoxide dismutase (SOD) and catalase (CAT) significantly reduced. In addition, aging significantly reduced BDNF expression. Finally, OB administration reversed the mentioned effects. The current research showed that OB administration improves learning/memory impairment induced by aging. It also found that this plant extract protects the brain tissues from oxidative damage and neuroinflammation.