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1.
Cereb Cortex ; 34(9)2024 Sep 03.
Artigo em Inglês | MEDLINE | ID: mdl-39227308

RESUMO

Research suggests that increased financial exploitation vulnerability due to declining decision making may be an early behavioral manifestation of brain changes occurring in preclinical Alzheimer's disease. One of the earliest documented brain changes during the preclinical phase is neurodegeneration in the entorhinal cortex. The objective of the current study was to examine the association between a measure of financial exploitation vulnerability and thickness in the entorhinal cortex in 97 cognitively unimpaired older adults. We also investigated financial exploitation vulnerability associations with frontal regions typically associated with decision making (e.g. dorsolateral and ventromedial prefrontal cortices), and additionally examined the interactive effect of age and cortical thickness on financial exploitation vulnerability. Results showed that greater financial exploitation vulnerability was associated with significantly lower entorhinal cortex thickness. There was a significant interaction between age and entorhinal cortex thickness on financial exploitation vulnerability, whereby lower entorhinal cortex thickness was associated with greater financial exploitation vulnerability in older participants. When the group was divided by age using a median split (70+ and <70 years old), lower entorhinal cortex thickness was associated with greater vulnerability only in the older group. Collectively, these findings suggest that financial exploitation vulnerability may serve as a behavioral manifestation of entorhinal cortex thinning, a phenomenon observed in suboptimal brain aging and preclinical Alzheimer's disease.


Assuntos
Córtex Entorrinal , Imageamento por Ressonância Magnética , Humanos , Córtex Entorrinal/diagnóstico por imagem , Córtex Entorrinal/patologia , Córtex Entorrinal/anatomia & histologia , Idoso , Masculino , Feminino , Envelhecimento/fisiologia , Envelhecimento/patologia , Idoso de 80 Anos ou mais , Tomada de Decisões/fisiologia , Pessoa de Meia-Idade , Cognição/fisiologia
2.
Aging Ment Health ; 28(9): 1270-1277, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38695380

RESUMO

OBJECTIVES: Procrastination is an almost universal behaviour and yet little research to date has focused on procrastination among older adults. The purpose of this study was to explore the potential association between age and procrastination, and the potential mediating roles of depressive symptomatology and loneliness. METHOD: Structural equation modelling was applied to data from 1309 participants (aged 29-92) from two waves United States Health and Retirement Study (2016-2020). Within the model, sex, education, marital status, and job status were added as covariates. RESULTS: There was no statistically significant direct effect between age and procrastination (ß = 0.06, p = 0.106). However, an indirect effect was present via depressive symptomatology (ß = -0.40, p < 0.001). No mediating effect of loneliness was observed (ß = - 0.01, p = 0.371). Subsequent analysis revealed that the symptoms, fatigue, loneliness, and lack of motivation significantly predicted procrastination. CONCLUSION: While age was not directly associated with procrastination, increasing age was associated with a decreased likelihood of depressive symptomatology, which was in turn associated with an increased likelihood of procrastination. Such findings indicates that age demonstrates no association with procrastination because of the suppressing effect of depressive symptomatology.


Assuntos
Depressão , Solidão , Procrastinação , Humanos , Solidão/psicologia , Masculino , Idoso , Feminino , Depressão/psicologia , Depressão/epidemiologia , Pessoa de Meia-Idade , Idoso de 80 Anos ou mais , Adulto , Estados Unidos/epidemiologia , Envelhecimento/psicologia , Fatores Etários , Motivação
3.
Alzheimers Dement ; 20(8): 5375-5384, 2024 08.
Artigo em Inglês | MEDLINE | ID: mdl-38988020

RESUMO

INTRODUCTION: Older Black adults are at risk of cerebral small vessel disease (CSVD), which contributes to dementia risk. Two subtypes of CSVD, arteriolosclerosis and ischemic lacunar infarcts, have been independently linked to lower cognition and higher dementia risk, but their combined effects on cognition in older Black adults are unclear. METHODS: Mixed models were used to examine the associations of in vivo measures of arteriolosclerosis (ARTS) and ischemic lacunar infarcts to cognitive level and change in 370 older Black adults without dementia.  RESULTS: Modeled together, higher ARTS load accounted for lower levels of global cognition, episodic memory, semantic memory, and perceptual speed, whereas higher infarct load accounted for lower levels of working memory. There were no associations with rate of cognitive change. DISCUSSION: Both arteriolosclerosis and ischemic infarcts impact the cognitive health of older Black adults, but arteriolosclerosis affects cognition more broadly and offers promise as an in vivo biomarker of dementia risk. HIGHLIGHTS: Older Black adults are at risk of cerebral small vessel disease (CSVD) and dementia. Examined magnetic resonance imaging-derived measure of arteriolosclerosis (ARTS), infarcts, and cognition. ARTS load was widely associated with lower cognition after adjusting for infarct load. Infarct load was specifically associated with lower complex attention. More within-Black in vivo studies of CSVD subtypes and cognition are needed.


Assuntos
Arteriolosclerose , Negro ou Afro-Americano , Acidente Vascular Cerebral Lacunar , Humanos , Masculino , Idoso , Feminino , Acidente Vascular Cerebral Lacunar/patologia , Arteriolosclerose/patologia , Imageamento por Ressonância Magnética , Cognição/fisiologia , Doenças de Pequenos Vasos Cerebrais/patologia , Encéfalo/patologia , Encéfalo/diagnóstico por imagem , Testes Neuropsicológicos/estatística & dados numéricos
4.
Clin Gerontol ; : 1-17, 2024 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-38992940

RESUMO

OBJECTIVES: The study aims to identify factors associated with health care and financial decision-making among older Black adults without dementia. METHODS: Participants (N = 326) underwent assessments of decision-making and completed measurements of factors from four categories: cognitive, contextual, psychosocial, and personality. We performed separate linear regression models to examine the association between each factor and decision-making and created a fully adjusted model. RESULTS: Higher global cognition (estimate = 1.92, SE = 0.21, p < .0001) was associated with better decision-making. Contextual factors including higher current annual income (estimate = 0.23, SE = 0.05, p < .0001), higher childhood socioeconomic status (estimate = 0.48, SE = 0.18, p = .006), higher health and financial literacy (estimate = 0.08, SE = 0.01, p < .0001), and lower financial stress (estimate = -0.19, SE = 0.07, p = .01) were associated with better decision-making. More psychological well-being (estimate = 0.07, SE = 0.22, p = .001), a psychosocial factor, and less neuroticism (estimate = -0.06, SE = 0.02, p = .002), a personality factor, were associated with better decision-making. In the fully adjusted model, two factors, higher global cognition and higher literacy (health and financial), remained associated with better decision-making. CONCLUSIONS: Cognitive and contextual factors serve as drivers of decision-making among older Black adults. CLINICAL IMPLICATIONS: Clinicians may implement strategies to bolster cognition and improve health and financial literacy to facilitate optimal decision-making among older Black adults.

5.
Aging Ment Health ; 27(5): 983-991, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-35583043

RESUMO

OBJECTIVES: The goal of this study was to test whether interpersonal dysfunction, characterized by loneliness and/or dissatisfaction with relationships, is an imminent predictor of financial exploitation vulnerability (FEV) among adults age 50+ within a 6-month observation period. This study also tests whether FEV prospectively predicts interpersonal dysfunction. METHODS: Twenty-six adults aged 50 or older completed a study involving baseline data collection and 13 follow-ups over 6 months. Linear mixed models were used for primary analyses. RESULTS: After adjustment for demographic, psychological and cognitive covariates, there were between-person effects of FEV and interpersonal dysfunction across follow-ups, suggesting that those with generally higher interpersonal dysfunction compared to other participants also reported greater FEV (B(SE) = 1.09(.33), p = .003). There was a within-person effect (B(SE) = .08(.03), p = .007) of elevated interpersonal dysfunction predicting greater FEV two weeks later across all follow-ups. Within-person effect of FEV was not predictive of interpersonal dysfunction (B(SE) = .25(.15), p = .10). There was also a significant effect of age (B(SE) = -.06(.02), p = .007), such that older individuals had lower FEV throughout follow-ups. CONCLUSION: Among adults age 50+, individuals with higher interpersonal dysfunction relative to others in the study reported greater FEV throughout the 6-month observation period. Increased loneliness and social dissatisfaction, relative to one's average level, predicts subsequent increases in FEV, and may be an imminent risk factor for exploitation.


Assuntos
Emoções , Transtornos Mentais , Humanos , Solidão/psicologia , Estudos Prospectivos , Fatores de Risco
6.
Alzheimers Dement ; 19(4): 1479-1490, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35899859

RESUMO

INTRODUCTION: Longitudinal multivariable analyses are needed to determine if the rate of olfactory decline during normal cognition predicts subsequent Alzheimer's disease (AD) diagnoses and brain dysmorphology. METHODS: Older adults (n = 515) were assessed annually for odor identification, cognitive function and dementia clinical diagnosis (max follow-up 18 years). Regional gray matter volumes (GMV) were quantified (3T MRI) in a cross-sectional subsample (n = 121). Regression models were adjusted for APOE-ε4 genotype, dementia risk factors and demographics. RESULTS: Faster olfactory decline during periods of normal cognition predicted higher incidence of subsequent MCI or dementia (OR 1.89, 95% CI: 1.26, 2.90, p < 0.01; comparable to carrying an APOE-ε4 allele) and smaller GMV in AD and olfactory regions (ß = -0.11, 95% CI -0.21, -0.00). DISCUSSION: Rapid olfactory decline during normal cognition, using repeated olfactory measurement, predicted subsequent cognitive impairment, dementia, and smaller GMVs, highlighting its potential as a simple biomarker for early AD detection. HIGHLIGHTS: Rate of olfactory decline was calculated from olfactory testing over ≥3 time points. Rapid olfactory decline predicted impaired cognition and higher risk of dementia. Neurodegeneration on 3T magnetic resonance imaging was identical in those with olfactory decline and Alzheimer's disease.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Humanos , Idoso , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/genética , Substância Cinzenta/patologia , Estudos Transversais , Encéfalo/patologia , Disfunção Cognitiva/etiologia , Envelhecimento , Apolipoproteínas E/genética , Imageamento por Ressonância Magnética , Testes Neuropsicológicos , Apolipoproteína E4/genética , Apolipoproteína E4/metabolismo
7.
Alzheimers Dement ; 19(2): 391-404, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-35416404

RESUMO

We propose the hypothesis that small high-density lipoprotein (HDL) particles reduce the risk of Alzheimer's disease (AD) by virtue of their capacity to exchange lipids, affecting neuronal membrane composition and vascular and synaptic functions. Concentrations of small HDLs in cerebrospinal fluid (CSF) and plasma were measured in 180 individuals ≥60 years of age using ion mobility methodology. Small HDL concentrations in CSF were positively associated with performance in three domains of cognitive function independent of apolipoprotein E (APOE) ε4 status, age, sex, and years of education. Moreover, there was a significant correlation between levels of small HDLs in CSF and plasma. Further studies will be aimed at determining whether specific components of small HDL exchange across the blood, brain, and CSF barriers, and developing approaches to exploit small HDLs for therapeutic purposes.


Assuntos
Doença de Alzheimer , Humanos , Doença de Alzheimer/líquido cefalorraquidiano , Apolipoproteínas E , Apolipoproteína E4 , Encéfalo , Cognição , Peptídeos beta-Amiloides/líquido cefalorraquidiano
8.
Clin Gerontol ; : 1-9, 2023 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-37246781

RESUMO

OBJECTIVES: This study examined the cognitive correlates of financial literacy using a comprehensive neuropsychological battery, and whether education modifies the relationship between cognition and financial literacy. METHODS: Sixty-six participants completed sociodemographic questionnaires, an assessment of financial literacy, and a neuropsychological assessment. Multiple linear regression models that controlled for age, sex, and education examined the main effects of cognitive measures that showed a significant bivariate association with financial literacy. RESULTS: After correcting for multiple comparisons, the Crystallized Composite score (p = .002) and the Picture Vocabulary test (p = .002) from the NIH Toolbox, and the Multilingual Naming Test (p > .001) from the Uniform Data Set 3 were associated with financial literacy. Contrary to our hypothesis, education did not interact with cognitive measures when considering financial literacy scores. CONCLUSIONS: Findings suggest that vocabulary knowledge and semantic memory may play an important role in financial literacy in older age. CLINICAL IMPLICATIONS: Assessing vocabulary knowledge and semantic processes may help to identify older adults with lower financial literacy skills. Additionally, financial literacy interventions may consider targeting individuals with lower vocabulary knowledge and semantic processing skills.

9.
Hum Brain Mapp ; 43(16): 5044-5052, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36066181

RESUMO

While there has been a proliferation of neuroimaging studies on cognitive decline in older non-Hispanic White adults, there is a dearth of knowledge regarding neuroimaging correlates of cognitive decline in Black adults. Resting-state functional neuroimaging approaches may be particularly sensitive to early cognitive decline, but there are no studies that we know of that apply this approach to examining associations of brain function to cognition in older Black adults. We investigated the association of cognitive decline with whole-brain voxel-wise functional connectivity to the hippocampus, a key brain region functionally implicated in early Alzheimer's dementia, in 132 older Black adults without dementia participating in the Minority Aging Research Study and Rush Memory and Aging Project, two longitudinal studies of aging that include harmonized annual cognitive assessments and magnetic resonance imaging brain imaging. In models adjusted for demographic factors (age, education, sex), global cognitive decline was associated with functional connectivity of the hippocampus to three clusters in the right and left frontal regions of the dorsolateral prefrontal cortex. In domain-specific analyses, decline in semantic memory was associated with functional connectivity of the hippocampus to bilateral clusters in the precentral gyrus, and decline in perceptual speed was inversely associated with connectivity of the hippocampus to the bilateral intracalcarine cortex and the right fusiform gyrus. These findings elucidate neurobiological mechanisms underlying cognitive decline in older Black adults and may point to specific targets of intervention for Alzheimer's disease.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Adulto , Humanos , Idoso , Neuroimagem , Imageamento por Ressonância Magnética/métodos , Hipocampo/patologia
10.
Psychosom Med ; 84(4): 437-445, 2022 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-35100182

RESUMO

OBJECTIVE: Elevations in blood pressure (BP) and associated white matter hyperintensities (WMHs) are chronic comorbid conditions among older Black adults. We investigated whether WMHs modify the association between late-life BP and cognition within older Black adults. METHODS: A total of 167 Black adults (age, ~75 years; without dementia at baseline) participating in neuroimaging studies at the Rush Alzheimer's Disease Center were evaluated for BP markers of cardiovascular health, including systolic BP, diastolic BP, pulse pressure, mean arterial pressure (MAP), and hypertension, and were assessed for global and domain-specific cognition at baseline and annually for up to 8 years. WMHs adjusted for intracranial volume were quantified at baseline. RESULTS: Models adjusted for relevant confounders and the interaction of these variables with time revealed differential associations between BP markers and baseline cognition; however, only elevated diastolic BP predicted faster cognitive, that is, episodic memory, decline (estimate = -0.002, standard error = 0.0009, p = .002). Although WMH burden did not modify the association between diastolic BP and episodic memory decline, it did interact with diastolic BP to lower episodic memory at baseline (estimate = -0.051, standard error = 0.012, p = .0001); that is, greater WMHs combined with higher diastolic BP resulted in the lowest baseline episodic memory scores. A similar profile was noted for WMHs, MAP, and baseline episodic memory. Hypertension was neither associated with cognition nor modified by WMH burden after multiple comparisons correction. CONCLUSION: Late-life diastolic BP was associated with faster rates of episodic memory decline in older Black adults; together with higher WMH burden, it (and MAP) lowered the point at which individuals begin their course of decline toward pathological aging.


Assuntos
Hipertensão , Substância Branca , Adulto , Idoso , Pressão Sanguínea , Cognição/fisiologia , Humanos , Hipertensão/epidemiologia , Imageamento por Ressonância Magnética , Substância Branca/diagnóstico por imagem , Substância Branca/patologia
11.
BMC Geriatr ; 22(1): 689, 2022 08 20.
Artigo em Inglês | MEDLINE | ID: mdl-35987616

RESUMO

BACKGROUND: The COVID-19 pandemic has exacerbated circumstances that place older adults at higher risk for abuse, neglect, and exploitation. Identifying characteristics of elder abuse during COVID-19 is critically important. This study characterized and compared elder abuse patterns across two time periods, a one-year period during the pandemic, and a corresponding one-year period prior to the start of the pandemic. METHODS: Contacts (including social media contacts, and email; all referred to as "calls" for expediency) made to the National Center on Elder Abuse (NCEA) resource line were examined for differences in types of reported elder abuse and characteristics of alleged perpetrators prior to the pandemic (Time 1; March 16, 2018 to March 15, 2019) and during the pandemic (Time 2; March 16, 2020 to March 15, 2021). Calls were examined for whether or not abuse was reported, the types of reported elder abuse, including financial, physical, sexual, emotional, and neglect, and characteristics of callers, victims, and alleged perpetrators. Chi-square tests of independence compared frequencies of elder abuse characteristics between time periods. RESULTS: In Time 1, 1401 calls were received, of which 795 calls (56.7%) described abuse. In Time 2, 1009 calls were received, of which 550 calls (54.5%) described abuse. The difference between time periods in frequency of abuse to non-abuse calls was not significant ([Formula: see text]). Time periods also did not significantly differ with regard to caller, victim, and perpetrator characteristics. Greater rates of physical abuse ([Formula: see text] and emotional abuse ([Formula: see text] were reported during Time 2 after adjustment for multiple comparisons. An increased frequency of multiple forms of abuse was also found in Time 2 compared to Time 1 ([Formula: see text]. CONCLUSIONS: Findings suggest differences in specific elder abuse subtypes and frequency of co-occurrence between subtypes between time periods, pointing to a potential increase in the severity of elder abuse during COVID-19.


Assuntos
COVID-19 , Abuso de Idosos , Idoso , COVID-19/epidemiologia , Abuso de Idosos/diagnóstico , Abuso de Idosos/psicologia , Humanos , Pandemias , Fatores de Risco
12.
Gerontology ; 67(6): 729-739, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33882498

RESUMO

INTRODUCTION: Evidence suggests that older Black adults are frequent victims of financial fraud and exploitation. This study aims to identify the factors associated with scam susceptibility in older Black adults. METHODS: Participants were 383 older Black adults living in the Chicago metropolitan area (mean age = 78 years and 82% female). A scam susceptibility measure assessed perceptions and behaviors that predispose older adults to fraud and scams. Categories of age-associated factors, including cognition, physical health, psychosocial factors, personality, and behavioral economics, were measured using uniform systematic assessments. For each category separately, measures associated with scam susceptibility were identified via stepwise variable selection. RESULTS: Older age was associated with greater scam susceptibility. Further, the analysis revealed a robust association of cognitive health with scam susceptibility, particularly the domains of semantic and working memory. Psychological well-being was associated with susceptibility, as was neuroticism. Behavioral economic measures including financial and health literacy and financial and health decision-making ability were also implicated. In a final model that included all the measures initially retained by variable selection, semantic memory, psychological well-being, and financial and health literacy were independently associated with scam susceptibility. Moreover, the association of age was attenuated and no longer significant after adjusting for these correlates. DISCUSSION: Age-associated vulnerabilities, rather than age itself, predispose older Black adults to financial fraud and scams. The correlates of scam susceptibility in community-living older Black adults primarily involve cognitive health, psychological, and behavioral economic factors.


Assuntos
Letramento em Saúde , Vida Independente , Fatores Etários , Idoso , Cognição , Feminino , Fraude , Humanos , Masculino
13.
Aging Ment Health ; 24(5): 740-746, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-30739493

RESUMO

Objectives: Financial exploitation (FE) in old age is poorly understood, particularly among those without significant cognitive impairment. The Finance, Cognition, and Health in Elders Study (FINCHES) aims to identify factors associated with FE among cognitively-healthy older adults. Preliminary findings regarding physical and mental health correlates in the pilot phase of FINCHES are reported.Method: Sixteen older adults who self-reported FE were demographically-matched on age, education, sex, and race/ethnicity to eighteen older adults who did not report past FE.Results: Those who believed they were exploited endorsed significantly greater symptoms of depression (p = 0.014) and marginally greater symptoms of anxiety (p = 0.062). Participants trended towards lower perceived successful aging (p = 0.094). Perceived FE participants also endorsed greater medical conditions (p = 0.047), but follow-up individual item analyses suggest that this was driven by problems with sleep (p = 0.030).Conclusions: These preliminary findings from the pilot phase of FINCHES highlight negative mental health factors associated with perceived FE among cognitively-intact older adults.


Assuntos
Cognição , Saúde Mental , Idoso , Envelhecimento , Ansiedade , Humanos , Fatores de Risco
14.
AIDS Care ; 30(4): 518-522, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-28944679

RESUMO

For persons living with HIV, health-related quality of life (HRQOL) may be threatened by physical and mental conditions but may be protected by positive psychological traits. We performed an exploratory look at the risk and protective factors for HRQOL in older adults living with HIV. Cross-sectional analyses of baseline data from the Rush Center of Excellence on Disparities in HIV and Aging (CEDHA), a community-based cohort of persons ages ≥50 living with HIV (n = 176) were performed. Analyses examined the relationship between risk/protective factors and two outcomes (i.e., self-reported health status [SRHS] and the healthy days index [HDI]). Having good/excellent health was associated with being a non-smoker (p = 0.002), greater purpose in life (p = 0.006), higher education (p = 0.007), fewer depressive symptoms (p = 0.004), fewer disabilities (p = 0.000), and less loneliness (p = 0.002) in bivariate analyses. Males (p = 0.03) and African Americans/Blacks (p = 0.03) reported higher HDI. Fewer depressive symptoms (p = 0.000), disabilities (p = 0.002), adverse life events (p = 0.0103), and loneliness (p = 0.000) were associated with higher HDI in bivariate analyses. In a logistic regression model, greater purpose in life, fewer disabilities, and being a non-smoker were associated with better SRHS after adjusting for covariates. For African Americans/Blacks, having fewer depressive symptoms and disabilities were associated with higher HDI after adjusting for covariates. Disabilities, depression, smoking status, race/ethnicity, and purpose in life were significantly associated with HRQOL. Findings support the need for research to examine the influence of cultural interpretations of life quality and focus on promoting physical function, smoking cessation, and psychological wellness in persons aging with HIV.


Assuntos
Infecções por HIV/psicologia , Nível de Saúde , Qualidade de Vida/psicologia , Estudos de Coortes , Estudos Transversais , Depressão/psicologia , Pessoas com Deficiência/psicologia , Etnicidade/psicologia , Feminino , Humanos , Solidão/psicologia , Masculino , Pessoa de Meia-Idade , Fatores de Proteção , Fatores de Risco , Fatores Sexuais , Fumar/psicologia
15.
Neuropsychol Rev ; 27(4): 326-327, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29275535

RESUMO

Errors were discovered in the reporting of processing speed data that do not impact the interpretation of findings.

16.
Gerontology ; 63(3): 253-262, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28125811

RESUMO

BACKGROUND: The human immunodeficiency virus (HIV) is associated with cognitive impairment, and loneliness is associated with cognitive decline in old age. Older Black adults with HIV may be at particular risk of loneliness due to stigma and lack of social resources. OBJECTIVE: We tested the hypotheses that (1) older Black adults with HIV would show greater loneliness than older White adults with HIV, and (2) greater loneliness among older Black adults with HIV would be associated with poorer cognitive function. METHODS: A total of 370 participants (177 with HIV, 193 without HIV; mean age 58.8 years, standard deviation 6.2 years; mean education 13.4 years, standard deviation 2.9 years; 73.9% male, 68.9% Black) in a community-based cross-sectional study of the Rush Center of Excellence on Disparities in HIV and Aging (CEDHA) completed a 5-item self-report scale used to measure emotional loneliness and a battery of cognitive measures. RESULTS: Contrary to our expectations, older Black adults indicated less overall loneliness than White adults (ß = -0.3893, SE = 0.1466, p = 0.0087) in models controlling for the effects of age, education, sex, global cognition, and income. However, in models with cognitive function as the outcome, an interaction between race and loneliness was observed, such that older Black adults who indicated greater loneliness showed poorer cognitive function relative to White adults (ß = -0.2736, SE = 0.1138, p = 0.0174). CONCLUSION: Older Black adults with HIV reported less loneliness than older White adults; however, the inverse association between loneliness and cognitive function was stronger in Black than White older adults. Additional work is needed to elucidate the mechanisms underlying this interaction.


Assuntos
Disfunção Cognitiva/complicações , Disfunção Cognitiva/psicologia , Infecções por HIV/complicações , Infecções por HIV/psicologia , Solidão/psicologia , Negro ou Afro-Americano/psicologia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/psicologia , Chicago , Cognição , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , População Branca/psicologia
17.
Neuroimage ; 130: 223-229, 2016 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-26899784

RESUMO

Financial literacy, the ability to understand, access, and utilize information in ways that contribute to optimal financial outcomes, is important for independence and wellbeing in old age. We previously reported that financial literacy is associated with greater functional connectivity between brain regions in old age. Here, we tested the hypothesis that higher financial literacy would be associated with greater white matter integrity in old age. Participants included 346 persons without dementia (mean age=81.36, mean education=15.39, male/female=79/267, mean MMSE=28.52) from the Rush Memory and Aging Project. Financial literacy was assessed using a series of questions imbedded as part of an ongoing decision making study. White matter integrity was assessed with diffusion anisotropy measured with diffusion tensor magnetic resonance imaging (DTI). We tested the hypothesis that higher financial literacy is associated with higher diffusion anisotropy in white matter, adjusting for the effects of age, education, sex, and white matter hyperintense lesions. We then repeated the analysis also adjusting for cognitive function. Analyses revealed regions with significant positive associations between financial literacy and diffusion anisotropy, and many remained significant after accounting for cognitive function. White matter tracts connecting right hemisphere temporal-parietal brain regions were particularly implicated. Greater financial literacy is associated with higher diffusion anisotropy in white matter of nondemented older adults after adjusting for important covariates. These results suggest that financial literacy is positively associated with white matter integrity in old age.


Assuntos
Envelhecimento/patologia , Compreensão , Economia , Inteligência , Substância Branca/patologia , Idoso de 80 Anos ou mais , Anisotropia , Encéfalo/patologia , Cognição/fisiologia , Compreensão/fisiologia , Imagem de Difusão por Ressonância Magnética , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Inteligência/fisiologia , Masculino , Testes Neuropsicológicos
18.
Aging Clin Exp Res ; 28(1): 99-108, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25995167

RESUMO

BACKGROUND AND AIMS: There is increasing clinical and legal interest in discrepancies between decision-making ability and cognition in old age, a stage of life when decisions have major ramifications. We investigated the frequency and correlates of such discrepancies in non-demented older adults participating in a large community-based cohort study of aging, the Rush Memory and Aging Project. METHODS: Participants [n = 689, mean age 81.8 (SD 7.6), mean education 15.2 (SD 3.1), 76.8 % female and 93.3 % white] completed a measure of financial and healthcare decision making (DM) and a battery of 19 neuropsychological tests from which a composite measure of global cognition (COG) was derived. RESULTS: Results indicated that 23.9 % of the sample showed a significant discrepancy between DM and COG abilities. Of these, 12.9 % showed DM < COG, while 11.0 % showed DM > COG. Logistic regression models showed older age, being non-white, greater temporal discounting, and greater risk aversion were associated with higher odds of being in the DM < COG group. Being male was associated with higher odds of being in the DM > COG group. Education, income, depressive symptoms, and impulsivity were not associated with a discrepancy. Only demographic associations (age, sex, and race) remained significant in a fully adjusted model with terms included for all factors. CONCLUSION: These results support the consideration of decision making and cognition as potentially separate constructs.


Assuntos
Envelhecimento , Cognição , Tomada de Decisões , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/etnologia , Envelhecimento/psicologia , Estudos de Coortes , Demografia , Feminino , Humanos , Masculino , Memória , Testes Neuropsicológicos , Fatores Socioeconômicos , Estatística como Assunto
19.
J Appl Gerontol ; 43(8): 1033-1041, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38323997

RESUMO

This study examined the interactive effect of subjective age on the relationship between global cognition and susceptibility to scams. Sixty-five participants underwent an assessment of global cognition (Mini Mental State Examination; MMSE), reported their perceived age (i.e., subjective age), and responded to a self-report questionnaire assessing scam susceptibility. A main effect of global cognition on scam susceptibility was found (p = .028); there was no main effect of subjective age (p = .819). An interaction between global cognition and subjective age was found (p = .016). Examination of conditional effects demonstrated that the relationship between cognition and scam susceptibility was not significant amongst those with subjective ages below one standard deviation of the mean, but was significant for those whose subjective ages fell around or above the mean. Findings suggest that individuals with older subjective ages may be particularly vulnerable to the negative effects of lower cognition on scam susceptibility.


Assuntos
Envelhecimento , Cognição , Humanos , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Envelhecimento/psicologia , Idoso de 80 Anos ou mais , Inquéritos e Questionários , Testes de Estado Mental e Demência , Adulto , Autorrelato
20.
Brain Imaging Behav ; 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39347939

RESUMO

Older adults with greater scam susceptibility are at greater risk for mild cognitive impairment and incident Alzheimer's dementia, regardless of baseline cognition. This, combined with documented associations between scam susceptibility and beta amyloid at death suggests that scam susceptibility may be an earlier indicator of pathological aging than cognition. Little, however, is known about whether in vivo neuroimaging markers of early-stage risk for Alzheimer's dementia are also related to scam susceptibility; such knowledge will inform upon the associations of neurodegenerative processes with scam susceptibility and may help identify vulnerable individuals. Participants were 472 community-based adults without dementia (age ~ 81y; 75% women) from the Rush Memory and Aging Project. Baseline 3T MRI T1-weighted structural and T2-weighted FLAIR data were used to assess the cortical thickness 'signature' of Alzheimer's disease (AD-CT) and white matter hyperintensity (WMH) burden, respectively. Scam susceptibility was measured using a questionnaire that assessed behaviors associated with vulnerability to fraud and scams. Demographically-adjusted linear effects regression models determined the relationship of each neuroimaging measure, first separately and then combined, with scam susceptibility. Reduced AD-CT was associated with higher levels of scam susceptibility (estimate=-0.10, standard error = 0.03, p = 0.002). WMH burden was not associated with scam susceptibility either alone or when combined in the same model as AD-CT (p-values ≥ 0.14). Results for AD-CT persisted after the inclusion of WMH burden. AD-CT was associated with scam susceptibility in older adults without dementia possibly signaling an in vivo profile of this behavior.

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