Journals of Gerontology Series B-Psychological Sciences and Social Sciences最新文献

{"title":"Socially Withdrawn or Socially Engaged? The Impacts of Caring for Grandchildren on Social Participation Among Older Adults in China.","authors":"Jason Wong, Mengke Zhao, Yuying Tong, Feinian Chen","doi":"10.1093/geronb/gbaf054","DOIUrl":"10.1093/geronb/gbaf054","url":null,"abstract":"<p><strong>Objectives: </strong>Grandparents caring for grandchildren (i.e., grandparenting) is a key aspect of intergenerational family dynamics. While extensive research has documented the health implications of grandparenting, relatively few studies have explored its association with social well-being. Grandparenting can either promote or constrain grandparents' social participation, depending on caregiving intensity and intergenerational living arrangements. These associations may also vary by gender due to gendered social norms and differences in opportunities for social networking. This study investigates the longitudinal association between grandparenting and social participation among grandparents and examines how this association differs by gender.</p><p><strong>Methods: </strong>Data are drawn from the 2011, 2013, and 2018 waves of the China Health and Retirement Longitudinal Study (N = 8,907, aged 45-80). We use fixed-effects Poisson regression models to examine the association between different types of grandparenting and the number of social participation activities of grandparents. Subgroup analyses are conducted by grandparents' gender.</p><p><strong>Results: </strong>In fixed-effects regression models adjusting for time-varying covariates, we find that nonintensive noncoresident grandparenting, intensive noncoresident grandparenting, and skipped-generation grandparenting are associated with increased social participation among grandparents compared to no grandparenting. However, no significant difference in social participation is observed between three-generation grandparenting and no grandparenting groups. Grandfathers show higher levels of social participation when engaging in nonintensive or intensive noncoresident grandparenting, whereas grandmothers experience increased social participation primarily with nonintensive noncoresident grandparenting.</p><p><strong>Discussion: </strong>Overall, grandparenting promotes rather than hinders social participation among grandparents. This study highlights the role of intergenerational family relationships in facilitating older adults' social engagement in later life.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143626887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Examining the Interaction Between Cognitive Reserve, Depression, and Sleep Quality: A Mixed-Method Study in an Aging Population.","authors":"Barbara Colombo, Manuel Leitner, Simona C S Caravita, Denise Chiappetta, Marie J Hayes","doi":"10.1093/geronb/gbaf072","DOIUrl":"10.1093/geronb/gbaf072","url":null,"abstract":"<p><strong>Objectives: </strong>Poor sleep quality and disorders like insomnia are prevalent in the aging population. This mixed-methods study aimed to identify predictors of sleep quality.</p><p><strong>Methods: </strong>In an online survey, 152 participants aged 65-86 completed questionnaires assessing sleep quality (Pittsburgh Sleep Quality Index [PSQI]), depressive symptoms (Beck Depression Inventory [BDI]), and cognitive reserve (Cognitive Reserve Test [CoRe-T]), alongside a narrative about their sleep experiences.</p><p><strong>Results: </strong>Demographics, depression, and cognitive reserve (CR) explained 79.3% of the variance in sleep quality. Age and depression predicted poorer sleep, whereas CR was linked to better sleep quality. Depression moderated this effect, reducing CR's protective role. Participants' narratives explained an additional 5.1% of the variance, with negative emotional language predicting poorer sleep and a present or past focus linked to better sleep. Higher CR correlated with more positive emotions and less present focus.</p><p><strong>Discussion: </strong>Cognitive reserve protects against sleep problems, and subjective reports offer insight into sleep perception, beneficial for prevention and treatment strategies.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144036331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nature-Based Welfare in Older Adulthood: An Eco-Appreciation Perspective.","authors":"Mali Nevo, Lia Levin","doi":"10.1093/geronb/gbaf041","DOIUrl":"10.1093/geronb/gbaf041","url":null,"abstract":"<p><strong>Objectives: </strong>This study examined the reciprocal relationship between older adults' well-being and their accounts of human-nature relations (HNR). Guided by the tenets of the Eco-Appreciation Perspective, the question addressed was: What can be learned from older adults' relations with nature about reciprocal nature-based welfare in older adulthood?</p><p><strong>Methods: </strong>In-depth interviews were conducted with 60 participants over the age of 65 in Israel, followed by a sequential deductive-inductive analysis of the data.</p><p><strong>Results: </strong>Four major themes were yielded: HNR as presence and being; HNR as connection; HNR as past, present, and future; and HNR as benevolence. Participants' experiences revealed an interaction between gratitude and awareness toward HNR and an enhanced sense of well-being, purpose, meaning, and belonging. The analysis also exposed novel insights into how HNR in older adulthood can prompt mutual nature-based welfare and provide an ongoing source of comfort and resilience, both through current activities and by accessing childhood memories.</p><p><strong>Discussion: </strong>The findings are discussed in the context of eco-centric viewpoints on contemporary aging, and highlight the active role that older adults can play in deepening their connection with nature while calling on professionals in health, gerontology, social work, and community care to recognize and harness the mutual benefits of this bond.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12067066/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143494716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Audiovisual integration facilitates age-related perceptual decision making.","authors":"Xiangfu Yang, Weiping Yang, Ruizhi Li, Jinfei Lin, Jiajia Yang, Yanna Ren","doi":"10.1093/geronb/gbaf037","DOIUrl":"10.1093/geronb/gbaf037","url":null,"abstract":"<p><strong>Objectives: </strong>Aging populations commonly experience a decline in sensory functions, which negatively affects perceptual decision making. The decline in sensory functions has been shown to be partially compensated by audiovisual integration. Although audiovisual integration may have a positive effect on perception, it remains unclear whether the perceptual improvements observed in older adults during perceptual decision making are better explained by the early or late integration hypothesis.</p><p><strong>Methods: </strong>An audiovisual categorization task was used to explore responses to unisensory and audiovisual stimuli in young and older adults. Behavioral drift-diffusion model (DDM) and electroencephalography (EEG) were applied to characterize differences in cognitive and neural dynamics across groups.</p><p><strong>Results: </strong>The DDM showed that older adults exhibited higher drift rates and shorter nondecision times for audiovisual stimuli than for visual or auditory stimuli alone. The EEG results showed that during the early sensory encoding stage (150-300 ms), older adults exhibited greater audiovisual integration in beta band than younger adults. In the late decision-formation stage (500-700 ms), older adults exhibited greater audiovisual integration in beta band and greater audiovisual integration in the anterior frontal electrodes than younger adults.</p><p><strong>Discussion: </strong>These findings highlight the crucial role of audiovisual integration in both the early and late stages of perceptual decision making in older adults. The results suggest that enhanced audiovisual integration in older adults compared with younger adults may serve as a specific mechanism to mitigate the negative effects of aging on perceptual decision making.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143558906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterizing Cognitive Dispersion and Its Correlates Across the Adult Lifespan in MIDUS.","authors":"Laura M Klepacz, Eric S Cerino, Jeremy M Hamm","doi":"10.1093/geronb/gbae201","DOIUrl":"10.1093/geronb/gbae201","url":null,"abstract":"<p><strong>Objectives: </strong>Although research has shown that higher levels of within-person variability across cognitive tasks (dispersion) are associated with cognitive decline in clinical samples, little is known about dispersion in comparatively younger, nonclinical, and national samples. A better understanding of dispersion is needed to elucidate for whom and under what circumstances dispersion can be used as a reliable indicator of cognitive health.</p><p><strong>Method: </strong>We used data from the Midlife in the United States Study (MIDUS; n = 2,229; Mage = 56 years, range = 33-83; 56% female) to: (a) characterize dispersion and its cross-sectional correlates in a nonclinical, adult lifespan sample and (b) examine changes in dispersion over time to determine for whom changes in dispersion may reflect better or worse cognitive aging.</p><p><strong>Results: </strong>Correlations showed higher levels of dispersion were associated with higher levels of mean performance at both waves (rs = 0.28-0.29). Autoregressive main effect models showed that increases in dispersion were associated with less decline in mean performance over the 2-wave, 9-year follow-up period (β = 0.17, p < .001). Moderation models showed that the link between change in dispersion and change in mean performance was pronounced in comparatively older adults (β = 0.28), women (β = 0.27), individuals with less education (β = 0.23), and those with lower income (β = 0.23; all ps < .001).</p><p><strong>Discussion: </strong>Findings suggest that increases in dispersion may not always be maladaptive in normative, adult lifespan samples and may reflect healthier cognitive profiles in individuals who are at greater risk for cognitive impairment.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12079375/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Daily Stressor Appraisals and Subjective Age Predict Daily Affective Ratings.","authors":"Lyndsey N Graham, Erica L O'Brien, Shevaun D Neupert","doi":"10.1093/geronb/gbaf029","DOIUrl":"10.1093/geronb/gbaf029","url":null,"abstract":"<p><strong>Objectives: </strong>Stressor appraisals are a transaction between the environment and the individual, such that individuals may appraise a situation as stressful when the problem is greater than the resources available to address it. Stressors appraised as threatening to the way one feels about themselves, their plans for the future, or their own physical health and safety are known to increase negative affect. Appraisal theory frames our predictions regarding the importance of daily contexts and aging processes to understand how stressor appraisals and feelings of aging may be associated with daily affective ratings. We investigated the potential interaction of daily stressors appraisals and daily subjective age on daily negative affect.</p><p><strong>Methods: </strong>101 younger adults (aged 18-36, M = 19.4, SD = 2.05) and 73 older adults (aged 60-90, M = 65.2, SD = 4.66) participated in an online 8-day daily diary study.</p><p><strong>Results: </strong>Our results indicated a significant 2-way interaction between daily stressor appraisals and daily subjective age on daily negative affect, such that on days when participants reported low stress appraisals and younger subjective ages, participants also reported lower negative affect.</p><p><strong>Discussion: </strong>The dynamic nature of stressor appraisals, in light of daily aging experiences and daily affective ratings, suggests potential benefits and boundaries associated with subjective aging experiences.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12067068/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143442987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Racial-Ethnic Differences in Care Networks of Older Adults: Empirical Exploration of Possible Explanations.","authors":"Zhiyong Lin","doi":"10.1093/geronb/gbaf038","DOIUrl":"10.1093/geronb/gbaf038","url":null,"abstract":"<p><strong>Objectives: </strong>Previous research on eldercare among minority populations often highlights the role of values, beliefs, and social expectations, placing greater emphasis on ideational factors than on sociostructural and health factors in explaining racial-ethnic differences in care arrangements. This study aims to describe the extent to which care received by older adults varies by race-ethnicity and to explore possible explanations for these variations using the behavioral model of health care use.</p><p><strong>Methods: </strong>Data were sourced from the 2018 National Health and Aging Trends Study (NHATS), a nationally representative survey of Medicare beneficiaries aged 68 and older. Latent class analyses were used to develop a care network typology with combinations of care from different sources. Multinomial regression models assessed various predisposing, enabling, and need factors associated with racial-ethnic differences in the distribution of constructed care network types. Formal mediation analysis tested potential mediators of these differences.</p><p><strong>Results: </strong>Black and Hispanic older adults tended to receive care from children and extended kin caregivers, while White older adults were more likely to receive care from their spouses and perform self-care with assistive technologies. Mediation analyses revealed that racial-ethnic differences in care networks were primarily attributable to enabling factors, including family configurations, social networks, and socioeconomic status. Limited evidence was found for the roles of predisposing factors, measured by care preferences, and need factors, measured by health conditions, in explaining these differences.</p><p><strong>Discussion: </strong>The findings highlight the need for more research and policy interventions to address the diverse challenges faced by socially disadvantaged older adults.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12079420/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143484942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinship Structures for Left Behind Older Adults in High Outmigration Contexts: Evidence From Puerto Rico.","authors":"Amílcar Matos-Moreno, Diego Alburez-Gutierrez, Iván Williams, Ashton M Verdery, Mariana Fernández Soto, Alexis Santos-Lozada","doi":"10.1093/geronb/gbaf052","DOIUrl":"10.1093/geronb/gbaf052","url":null,"abstract":"<p><strong>Objectives: </strong>Migration accelerates population aging in high-outmigration contexts. Older adults who remain in high-outmigration contexts are at higher risk of reduced support networks and increased caregiving burden, but prior work has not quantified how migration influences older adults' kinship structures in such places. This study aims to estimate the kinship structures of older adults living in Puerto Rico and the presence of migrant kin.</p><p><strong>Methods: </strong>Data come from the United Nations World Population Prospects from 1950 to 2021. We created a 2-sex, multistate, time-variant kinship model to estimate how many and what type of family relationships we can expect for older adults in Puerto Rico and the presence of transnational kin.</p><p><strong>Results: </strong>Our models suggest that a 65+-year-old living in Puerto Rico will have, on average, 5.6 close biological family members in 2021: 2.8 adult children and 2.7 siblings. These numbers represent a decline since 2000 when 65+-year-olds had 6.7 such kin. Under 2021 demographic conditions, adults 65 years of age are expected to have 69% of their total female close kin and 71% of daughters residing in the United States. The expected number of transnational living kin is greater for 2021 compared with 2000.</p><p><strong>Discussion: </strong>Models suggest that future generations of older adults in Puerto Rico will have an increased presence of transnational family members. Thus, public health strategies must adapt to address the needs of transnational families in future generations of older adults.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12084824/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143598183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Associations Between Internalized HIV Stigma and Cognitive Function Among Older Women With HIV.","authors":"Thi Vu, Jenni Wise, Deborah L Jones, Gina Wingood, Monica M Diaz, Aruna Chandran, Mardge Cohen, Sheri D Weiser, Amanda Spence, Tracey Wilson, Andrea Norcini-Pala, Anjali Sharma, Leah H Rubin, Bulent Turan, Janet M Turan, Joan K Monin","doi":"10.1093/geronb/gbaf058","DOIUrl":"10.1093/geronb/gbaf058","url":null,"abstract":"<p><strong>Objectives: </strong>Internalized HIV stigma refers to the negative beliefs, feelings, and attitudes that people with HIV (PWH) adopt about themselves due to societal HIV stigma. Internalized HIV stigma negatively affects mental health but less is known about this factor on cognitive function in PWH. This study examines associations between internalized HIV stigma and cognition among women aged 50+ with HIV.</p><p><strong>Methods: </strong>Internalized HIV stigma was measured in the Women's Interagency HIV Study between 2013 and 2015 using the HIV stigma scale (negative self-image subscale). Executive function, processing speed, attention/working memory, verbal learning, verbal memory, verbal fluency, and fine motor function were assessed using a validated cognitive battery. Demographically adjusted T-scores were calculated for each domain (higher scores = better performance). A global cognition score was computed by averaging the domain-specific scores. Linear regression models adjusted for age, race, ethnicity, cognition at baseline, average annual income, undetectable viral load, smoking history, recent nonprescription drug use, menopausal status, depressive symptoms, and alcohol use.</p><p><strong>Results: </strong>Participants' (N = 760) mean age was 54 years; 61% identified as Black/African American; 13% were Hispanic; and 54% had an annual income below $12,000. The median time between the first and second cognitive assessments was 4 years. Higher internalized HIV stigma was associated with poorer global cognitive function, verbal learning, and verbal memory at time 2.</p><p><strong>Discussion: </strong>Findings suggest assessing and monitoring HIV stigma may benefit cognitive function for older women aging with HIV by identifying those at greater risk for cognitive decline who could be targeted for stigma reduction interventions.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12067073/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143694627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perceived Control, Cognitive Training, and Incident Alzheimer's Disease and Related Dementias in the ACTIVE study.","authors":"Laura B Zahodne, Katherine Miller, Chuxuan Sun, Neika Sharifian, Jeanine M Parisi, George W Rebok, Adrienne T Aiken Morgan, Alden L Gross, Kelsey R Thomas, Cynthia Felix, Norma B Coe","doi":"10.1093/geronb/gbaf086","DOIUrl":"https://doi.org/10.1093/geronb/gbaf086","url":null,"abstract":"<p><strong>Objectives: </strong>Greater perception of control over important life outcomes has been linked to better cognitive performance and greater benefits from cognitive training interventions among older adults. However, it is not yet known whether perceived control predicts incident Alzheimer's disease and related dementias (ADRD) or influences links between cognitive training and ADRD incidence.</p><p><strong>Methods: </strong>Data were obtained from 2,021 participants in the Advanced Cognitive Training for Independent and Vital Elderly (ACTIVE) trial. Baseline perceived control was measured with the Personality in Intellectual Aging Contexts Inventory. Incident diagnosed ADRD over 20 years was operationalized using the Centers for Medicare and Medicaid Services claims data. Main effects of perceived control and interactions between perceived control and intervention group (reasoning, memory, speed, control) on diagnosed ADRD incidence were estimated using cause-specific hazard models.Results: Greater perceived control at study baseline was associated with reduced hazard of ADRD. Perceived control did not moderate associations between intervention group and time to ADRD diagnosis.</p><p><strong>Discussion: </strong>Strengthening perceived control through individual and/or environmental interventions may lower ADRD risk.</p>","PeriodicalId":56111,"journal":{"name":"Journals of Gerontology Series B-Psychological Sciences and Social Sciences","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144058969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}