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1.
Arch Sex Behav ; 53(2): 525-541, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37943472

RESUMO

Experiences of heterosexism are rampant online, where bias and harassment against LGBTQ+ individuals spread conveniently and widely. Yet, research has been limited in understanding the exposure to online heterosexism among LGBTQ+ individuals partly due to the lack of a quantitative measure to advance this research. Thus, the current study developed and examined the psychometric properties of the Perceived Online Heterosexism Scale (POHS). Items were developed via a literature review, a survey of social media platforms, and an expert review. Exploratory (N = 288) and confirmatory (N = 653) factor analyses yielded a 4-factor structure and produced a 20-item scale with the following subscales: (1) Heterosexist Cyberaggression (4 items), (2) Online Heterosexist Stereotyping (4 items), (3) Online Exposure to Systemic Heterosexism (8 items), and (4) Heterosexist Online Media (four items). Internal consistency estimates ranged from .91 to .96, and the POHS accounted for 65.9% of the variance. Examination of a second-order model suggested that a total scale score can also be used. Initial construct validity was evidenced as POHS scores were associated with an existing heterosexism measure, anxiety and depressive symptoms, internalized heterosexism, and LGBTQ+ community connectedness in line with theory and empirical evidence. Implications for research practice are discussed.


Assuntos
Saúde Mental , Minorias Sexuais e de Gênero , Humanos , Ansiedade , Psicometria , Estereotipagem , Masculino , Feminino
2.
Fam Process ; 2024 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-38784985

RESUMO

Experiencing prejudice and discrimination from family has been found to be positively associated with mental health problems among sexual minorities. Emerging evidence also shows the value of contextualizing the internalization of minority stress by considering individual cultural factors, such as filial piety. We examined whether authoritarian filial piety (AFP) and reciprocal filial piety (RFP) moderated the link between distal stressors in one's family and mental health outcomes. A total of 362 (56.9% male; age: M = 24.55, SD = 6.60) Chinese lesbian, gay, bisexual, queer/questioning, and other non-heterosexual (LGBQ+) individuals participated in this study. They provided demographic information and completed a battery of measures for AFP and RFP, sexual orientation-based prejudice and discrimination in family of origin (SOPDF), depressive symptoms, and life satisfaction. Structural equation modeling results showed that SOPDF had a positive and negative link with depressive symptoms and life satisfaction, respectively. In addition, we identified AFP and RFP as significant moderators for the association between SOPDF and depressive symptoms, and the association between SOPDF and life satisfaction, respectively. Specifically, the positive effect of SOPDF on depressive symptoms was greater for participants with higher levels of AFP; the negative effect of SOPDF on life satisfaction was greater for participants who endorsed higher levels of RFP. Our findings corroborated past studies' conclusion about the detrimental impact of familial sexual stigma on LGBQ+ people's mental health. Furthermore, such impact on negative and positive mental health outcomes are respectively conditioned by the degree to which LGBQ+ individuals endorse AFP and RFP. These findings underscore the importance for therapists who endorse family therapy to help LGBQ+ clients navigate familial sexual stigma and consider the role of filial piety beliefs in shaping the impact of familial sexual stigma on these clients' mental health.

3.
Artigo em Inglês | MEDLINE | ID: mdl-38494677

RESUMO

This study examined whether mentorship could promote young gay men's identities and well-being, and whether a mentor's sexual orientation matters. A randomized control trial compared outcomes across three conditions: Arm A (a mentee matched with a sexual minority mentor), Arm B (a mentee matched with a heterosexual mentor), and a control arm receiving psychoeducation only. A community sample of 60 mentees aged 18-25 years was randomly allocated to the three arms and completed questionnaires at baseline, 3 months into the intervention, and at the end of the 6-month program. Fifteen mentees recounted their mentoring experiences through in-depth interviews. Linear mixed effects models showed that for both intervention and control conditions, internalized homonegativity declined while resilience, loneliness, and body acceptance improved over time. No time and group interactions were found. Meanwhile, a mentor's sexual orientation did not drive differential quality and outcomes of mentorship. Interviewees cited various benefits of mentorship, including providing companionship, enriching connection with lesbian, gay, bisexual (LGB) communities, and adding knowledge and perspectives of LGB lives and identities. Although quantitative data did not support any exclusive benefits of mentorship, most mentees recognized mentorship as a vital source of affirmation and companionship. Implications for research and mentoring programs are discussed.

4.
Arch Sex Behav ; 52(3): 957-970, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36692631

RESUMO

Previous research has revealed that filial piety belief plays a critical role in self-acceptance of sexual orientation, but studies have rarely examined whether and how reciprocal (i.e., providing care and support based on affective bonding) and authoritarian (i.e., showing unconditional obedience to parents because of parental authority) filial piety contribute to internalized homonegativity. A total of 477 Chinese lesbian, gay, bisexual, questioning/queer, or other non-heterosexual (LGBQ +) adults participated in this study. These participants completed a battery of measures for reciprocal and authoritarian filial piety, perceived internalized, social, and parental pressure to get married in a heterosexual marriage, internalized heteronormativity, socially oriented identity (i.e., negative beliefs about how others in society would negatively treat them because of their sexual orientation), and family-oriented identity (e.g., guilt related to filial piety and worries about present and future life). The results indicated that higher reciprocal filial piety was directly associated with higher internalized heteronormativity. Higher authoritarian filial piety had a direct link with higher family-oriented identity. In addition, authoritarian filial piety was positively associated with internalized heteronormativity through internalized pressure to get married; authoritarian filial piety had a positive link with socially oriented identity through perceived social pressure to get married; authoritarian filial piety was positively related to family-oriented identity through perceived parental pressure to get married. Conclusions: Authoritarian filial piety is a risk factor for internalized homonegativity, and perceived pressure to get married in a heterosexual marriage might be the underlying mechanism for the relationship between authoritarian filial piety and internalized homonegativity.


Assuntos
Homossexualidade Feminina , Minorias Sexuais e de Gênero , Adulto , Humanos , Masculino , Feminino , Casamento , Heterossexualidade , Homossexualidade Feminina/psicologia , Bissexualidade
5.
J Couns Psychol ; 70(4): 367-376, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37104783

RESUMO

Research has consistently shown the importance of affirmative practice when therapists work with lesbian, gay, bisexual, queer/questioning (LGBQ) clients. However, less is known about factors that may influence the extent to which clients benefit from affirmative practice. The present study intends to address this gap by examining whether LGBQ affirmative practice would be positively associated with psychological well-being, and whether individuals factors including internalized homophobia (IH), reciprocal filial piety (RFP; providing care and support for parents based on affective bonding), and authoritarian filial piety (AFP; showing unconditional obedience to parents based on parental authority) would moderate this relationship. A total of 128 Chinese LGBQ clients (50% male, 38.3% female, and 11.7% nonbinary/gender queer; age: M = 25.26 years, SD = 5.46) from 21 provinces and regions completed the online survey. Results revealed that LGBQ affirmative practice was positively associated with psychological well-being after controlling for LGBQ clients' pretherapy distress and therapists' credibility. Such association was greater for LGBQ clients who had higher levels of IH and AFP, whereas such effect did not vary with RFP. This study provides preliminary empirical evidence for the effectiveness of LGBQ affirmative practice in psychological health among Chinese LGBQ clients. Moreover, LGBQ affirmative practice might be more helpful for LGBQ clients with higher IH and AFP. These findings implicate that Chinese counselors and therapists should engage in LGBQ affirmative practice when they work with LGBQ clients, especially for those who have high levels of IH and AFP. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Bem-Estar Psicológico , Minorias Sexuais e de Gênero , Humanos , Masculino , Feminino , Adulto , alfa-Fetoproteínas , Bissexualidade/psicologia , Saúde Mental
6.
J Couns Psychol ; 70(5): 522-534, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37358537

RESUMO

Research has shown that minority stress is linked to poorer mental health across a variety of stigmatized populations, including lesbian, gay, bisexual, and queer (LGBQ) people. It is therefore essential to understand factors that can counteract minority stress. To date, most research on LGBQ people's resilience relied on retrospective reports of stressful identity-salient experiences. This limits the understanding about resilience factors that enable LGBQ people to thrive in the face of minority stressors as they occur on a day-to-day basis. The present study addressed this gap by using a daily diary design to test whether self-compassion protects LGBQ people's affective well-being from daily stressful sexual orientation-salient experiences (SOSEs). A sample of 235 LGBQ adults completed a baseline survey that assessed self-compassion, as well as brief online surveys twice daily for a maximum of 17 days that assessed SOSEs and affect, providing a total of 3,310 days of data. As anticipated, results of multilevel modeling showed that negative and positive SOSEs were linked to negative and positive evening affect, respectively, at both the daily and person levels. Self-compassion moderated the link between daily negative SOSEs and positive evening affect, such that daily negative SOSEs were linked to lower positive affect only among those with lower self-compassion. Moderation effect was not observed for negative evening affect as an outcome. Exploratory analysis suggested that the buffering effect of self-compassion could be impacted by contextual factors. Our study showed the importance of self-compassion and access to positive SOSEs for LGBQ people's well-being. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Autocompaixão , Minorias Sexuais e de Gênero , Adulto , Humanos , Masculino , Feminino , Estudos Retrospectivos , Comportamento Sexual , Bissexualidade/psicologia
7.
J Couns Psychol ; 70(5): 562-570, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37439739

RESUMO

This study investigates the relationships between therapists' use of discourse particles and therapist empathy. Discourse particles, commonly found in non-English languages, are verbal elements that constitute metacommunication by encoding speakers' emotions and attitudes, which are typically expressed by nonverbal behaviors (e.g., intonation, tone, facial expression, nodding). We hypothesize an inverted U-shaped curvilinear relationship between therapists' use of discourse particles and therapist empathy, given the notion that an optimal level of therapists' emotion in psychotherapy can facilitate clients' inner experiencing and self-expression. Four psychotherapy sessions each from 39 therapist-client dyads were analyzed. After each session, therapist empathy was rated by trained observers using the Therapist Empathy Scale (TES) and by clients using the Barrett-Lennard Relationship Inventory (BLRI). Multilevel modeling shows that both the person-level negative quadratic term and positive linear term for therapists' usage of discourse particles are significant in predicting mean TES with large effect sizes. The same predictors do not yield significant results in predicting mean BLRI but they trend in similar directions of associations with medium effect sizes. Our results suggest the optimal usage of discourse particles by therapists is around 20.3% (out of all utterances). The nonsignificant results in BLRI may be attributed to the relatively small sample size of our data and the noncommunication orientation of the client-rated measure. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Empatia , Relações Profissional-Paciente , Humanos , Psicoterapia/métodos , Emoções
8.
Stroke ; 53(4): 1318-1327, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34775838

RESUMO

BACKGROUND: Poststroke cognitive impairment is common, but the trajectory and magnitude of cognitive decline after stroke is unclear. We examined the course and determinants of cognitive change after stroke using individual participant data from the Stroke and Cognition Consortium. METHODS: Nine longitudinal hospital-based cohorts from 7 countries were included. Neuropsychological test scores and normative data were used to calculate standardized scores for global cognition and 5 cognitive domains. One-step individual participant data meta-analysis was used to examine the rate of change in cognitive function and risk factors for cognitive decline after stroke. Stroke-free controls were included to examine rate differences. Based on the literature and our own data that showed short-term improvement in cognitive function after stroke, key analyses were restricted to the period beginning 1-year poststroke to focus on its long-term effects. RESULTS: A total of 1488 patients (mean age, 66.3 years; SD, 11.1; 98% ischemic stroke) were followed for a median of 2.68 years (25th-75th percentile: 1.21-4.14 years). After an initial period of improvement through up to 1-year poststroke, decline was seen in global cognition and all domains except executive function after adjusting for age, sex, education, vascular risk factors, and stroke characteristics (-0.053 SD/year [95% CI, -0.073 to -0.033]; P<0.001 for global cognition). Recurrent stroke and older age were associated with faster decline. Decline was significantly faster in patients with stroke compared with controls (difference=-0.078 SD/year [95% CI, -0.11 to -0.045]; P<0.001 for global cognition in a subgroup analysis). CONCLUSIONS: Patients with stroke experience cognitive decline that is faster than that of stroke-free controls from 1 to 3 years after onset. An increased rate of decline is associated with older age and recurrent stroke.


Assuntos
Disfunção Cognitiva , Acidente Vascular Cerebral , Idoso , Cognição , Disfunção Cognitiva/epidemiologia , Disfunção Cognitiva/etiologia , Função Executiva , Humanos , Testes Neuropsicológicos
9.
Am J Geriatr Psychiatry ; 29(2): 156-165, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32651052

RESUMO

OBJECTIVE: The impact of white matter hyperintensities (WMH) on language possibly depends on lesion location through disturbance of strategic white matter tracts. We examined the impact of WMH location on language in elderly Asians. DESIGN: Cross-sectional. SETTING: Population-based. PARTICIPANTS: Eight-hundred nineteen residents of Singapore, ages (≥65 years). MEASUREMENTS: Clinical, cognitive and 3T magnetic resonance imaging assessments were performed on all participants. Language was assessed using the Modified Boston Naming Test (MBNT) and Verbal Fluency (VF). Hypothesis-free region-of-interest-based (ROI) analyses based on major white matter tracts were used to determine the association between WMH location and language. Conditional dependencies between the regional WMH volumes and language were examined using Bayesian-network analysis. RESULTS: ROI-based analyses showed that WMH located within the anterior thalamic radiation (mean difference: -0.12, 95% confidence interval [CI]: -0.22; -0.02, p = 0.019) and uncinate fasciculus (mean difference: -0.09, 95% CI: -0.18; -0.01, p = 0.022) in the left hemisphere were significantly associated with worse VF but did not survive multiple testing. Conversely, WMH volume in the left cingulum of cingulate gyrus was significantly associated with MBNT performance (mean difference: -0.09, 95% CI: -0.17; -0.02, p = 0.016). Bayesian-network analyses confirmed the left cingulum of cingulate gyrus as a direct determinant of MBNT performance. CONCLUSION: Our findings identify the left cingulum of cingulate gyrus as a strategic white matter tract for MBNT, suggesting that language - is sensitive to subcortical ischemic damage. Future studies on the role of sporadic ischemic lesions and vascular cognitive impairment should not only focus on total WMH volume but should also take WMH lesion location into account when addressing language.


Assuntos
Idioma , Substância Branca/patologia , Idoso , Teorema de Bayes , Estudos Transversais , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Singapura
10.
Age Ageing ; 50(4): 1236-1242, 2021 06 28.
Artigo em Inglês | MEDLINE | ID: mdl-33480974

RESUMO

BACKGROUND: The relationship between self-reported visual disability and cognitive impairment in older individuals is unclear. OBJECTIVE: To determine the relationship of vision-specific functioning (VSF), vision-specific mobility (VSM) and visual acuity (VA) with clinically assessed cognitive impairment in the Epidemiology of Dementia in Singapore study. DESIGN: Cross-sectional. SETTING: Population-based. SUBJECTS: Eight hundred and seventy-four adults aged ≥60 years at higher risk of possible cognitive impairment by the Abbreviated Mental Test and progressive forgetfulness question. METHODS: VSF and VSM were measured using Rasch-transformed continuous scores of two Impact of Vision Impairment questionnaire domains. Cognitive impairment was objectively determined using detailed neuropsychological testing and defined as no cognitive impairment (NCI), mild cognitive impairment-no dementia (CIND), moderate CIND only and moderate CIND or dementia. Associations were assessed using multinomial logistic regression models. RESULTS: Of the 874 participants (49.0% males, mean age (SD) 65.5 (7.0) years), 277, 281 and 316 had NCI, mild CIND and moderate CIND or dementia, respectively. Compared to NCI, the odds of moderate CIND, and moderate CIND or dementia increased for every SD worsening in VSF (OR: 1.44, 95% CI 1.14-1.82, and OR: 1.52, 95%CI 1.19-1.94, respectively) and VSM (OR: 1.42, 95%CI 1.11-1.81, and OR: 1.50, 95%CI 1.15-1.95). Similarly, the odds of mild CIND (OR: 1.62, 95%CI 1.19-2.22), moderate CIND (OR: 1.93, 95%CI 1.45-2.58), and moderate CIND or dementia (OR: 2.25, 95%CI 1.62-3.11) increased significantly with every SD worsening of VA. CONCLUSIONS: Our results emphasise the importance of interventions to prevent vision loss and improve quality of life to reduce likelihood of age-related cognitive decline.


Assuntos
Disfunção Cognitiva , Demência , Idoso , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/epidemiologia , Estudos Transversais , Demência/diagnóstico , Demência/epidemiologia , Feminino , Humanos , Masculino , Qualidade de Vida , Singapura/epidemiologia
11.
J Couns Psychol ; 68(5): 550-561, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33090871

RESUMO

Most measures of psychotherapy outcome focus on symptomatic change. However, clients often report other changes through therapy, such as increased self-acceptance. This study reports on the development and validation of the Complementary Measure of Psychotherapy Outcome (COMPO) that assesses different areas of psychological functioning deemed important by clients and therapists. Items were written based on a literature review of client-reported change and feedback from experienced therapists. Exploratory factor analysis was conducted on the initial 42-item COMPO administered to 264 psychotherapy clients. Iterative item reduction resulted in the final 12-item, four-factor solution, with factors named self-acceptance, self-knowledge, relationship quality, and consideration of others. This factor structure, along with a bifactor model that contains a general factor and the four domain-specific factors, was replicated on a sample of 571 adults in the community. The 12-item COMPO exhibits convergent validity with measures of self-esteem, insight, social support, and empathy; demonstrates 2-week test-retest reliability; and predicts life satisfaction. The 12-item COMPO was further administered to 28 clients in short-term psychodynamic therapy for depression. Except for consideration of others, COMPO subscales and total scale scores improved from pre- to posttherapy. Posttherapy COMPO scores were also higher among clients who experienced clinically significant change compared to those who did not. The COMPO was negatively associated with depressive symptoms and impairments in functioning across the three samples. The brevity of the COMPO makes it a convenient tool to supplement symptom-based measures for a more comprehensive assessment of outcome in psychotherapy. (PsycInfo Database Record (c) 2021 APA, all rights reserved).


Assuntos
Psicoterapia Psicodinâmica , Adulto , Empatia , Análise Fatorial , Humanos , Reprodutibilidade dos Testes , Autoimagem
12.
Hum Brain Mapp ; 41(8): 2037-2047, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-31944479

RESUMO

Hippocampal atrophy and abnormal ß-Amyloid (Aß) deposition are established markers of Alzheimer's disease (AD). Nonetheless, longitudinal trajectory of Aß-associated hippocampal subfield atrophy prior to dementia remains unclear. We hypothesized that elevated Aß correlated with longitudinal subfield atrophy selectively in no cognitive impairment (NCI), spreading to other subfields in mild cognitive impairment (MCI). We analyzed data from two independent longitudinal cohorts of nondemented elderly, including global PET-Aß in AD-vulnerable cortical regions and longitudinal subfield volumes quantified with a novel auto-segmentation method (FreeSurfer v.6.0). Moreover, we investigated associations of Aß-related progressive subfield atrophy with memory decline. Across both datasets, we found a converging pattern that higher Aß correlated with faster CA1 volume decline in NCI. This pattern spread to other hippocampal subfields in MCI group, correlating with memory decline. Our results for the first time suggest a longitudinal focal-to-widespread trajectory of Aß-associated hippocampal subfield atrophy over disease progression in nondemented elderly.


Assuntos
Envelhecimento , Peptídeos beta-Amiloides/metabolismo , Disfunção Cognitiva , Hipocampo/patologia , Transtornos da Memória , Idoso , Envelhecimento/metabolismo , Envelhecimento/patologia , Atrofia/patologia , Região CA1 Hipocampal/diagnóstico por imagem , Região CA1 Hipocampal/patologia , Disfunção Cognitiva/diagnóstico por imagem , Disfunção Cognitiva/metabolismo , Disfunção Cognitiva/patologia , Feminino , Hipocampo/diagnóstico por imagem , Humanos , Interpretação de Imagem Assistida por Computador , Processamento de Imagem Assistida por Computador , Estudos Longitudinais , Masculino , Transtornos da Memória/diagnóstico por imagem , Transtornos da Memória/metabolismo , Transtornos da Memória/patologia , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons
13.
AIDS Care ; 29(1): 118-124, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27350139

RESUMO

Emerging evidence has suggested that seropositive men who have sex with men (MSM) do not only face biased treatment from the general public but also from members of the MSM community. We conceptualized such biases perpetuated within the MSM community as human immunodeficiency virus (HIV) in-group stigma. This study examined the pathways by which perceived HIV in-group stigma impacted the mental health of seropositive MSM in Hong Kong. Internalized HIV stigma, serostatus disclosure concerns, and negative reactions towards HIV stigma were hypothesized as intermediate factors. Based on 100 Chinese seropositive MSM who were on antiretroviral therapy, results of a path analysis partially supported our hypotheses. Only negative reactions towards HIV stigma within the MSM community was a significant intermediate factor. The findings highlight the importance of understanding seropositive MSM's different reactions to HIV stigma perpetuated within the MSM community. On top of stigma reduction research, further research may explore ways that help seropositive MSM cope with HIV in-group stigma and foster resilience.


Assuntos
Soropositividade para HIV/psicologia , Homossexualidade Masculina/psicologia , Saúde Mental , Estigma Social , Adaptação Psicológica , Adulto , Hong Kong , Humanos , Masculino , Pessoa de Meia-Idade , Percepção , Marginalização Social
14.
J Sport Exerc Psychol ; 38(2): 203-8, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27390136

RESUMO

Physical activity is associated with various health benefits for people with mental illness (PMI). Very few studies to date have examined the factors associated with physical activity among PMI in the Chinese context. The present study examined the factors related to physical activity using the health belief model and the association between physical activity and perceived health among 443 PMI in Hong Kong using stratified sampling. Results from the structural equation modeling showed that among all the factors of the health belief model, self-efficacy was significantly related to higher levels of physical activity, and perceived barriers were significantly related to lower levels of physical activity. In addition, physical activity was significantly related to better perceived health and fewer health needs. Interventions to promote physical activity among PMI should aim to increase their self-efficacy in initiating and adhering to physical activity and to remove barriers to physical activity.


Assuntos
Atitude Frente a Saúde , Cultura , Exercício Físico/psicologia , Pessoas Mentalmente Doentes/psicologia , Adulto , Estudos Transversais , Feminino , Hong Kong , Humanos , Masculino , Modelos Psicológicos , Autoeficácia , Fatores Socioeconômicos , Inquéritos e Questionários , Adulto Jovem
15.
Stroke ; 46(10): 2808-14, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26330446

RESUMO

BACKGROUND AND PURPOSE: The present study sought to examine the association between the burden of cerebrovascular disease (CeVD) as assessed by multimodal magnetic resonance imaging and neurocognitive function. METHODS: Cognitively impaired patients and controls were tested on an extensive neuropsychological battery and underwent multimodal brain magnetic resonance imaging. CeVD markers determined from magnetic resonance imaging included the presence of multiple lacunes, multiple cerebral microbleeds, and moderate or severe white matter hyperintensities as markers for small-vessel disease and cortical stroke and intracranial stenosis as markers for large-vessel disease. A weighted CeVD burden score was constructed, and its association with global and domain-specific cognitive performance was investigated. RESULTS: A total of 305 cases and 94 controls were included in the analysis. A graded association of CeVD burden with neurocognitive function was found. Moreover, a clear threshold of CeVD burden was associated with severe impairment. White matter hyperintensities was associated with global neurocognitive deficits, whereas microbleeds were associated with domain-specific impairments. CONCLUSIONS: The weighted CeVD burden score comprising markers of both small- and large-vessel diseases were associated with deficits in both global and domain-specific neurocognitive function. Additional studies are needed to validate the use of this CeVD burden score for the prediction of dementia.


Assuntos
Transtornos Cerebrovasculares/complicações , Transtornos Cerebrovasculares/patologia , Transtornos Cognitivos/etiologia , Neuroimagem/métodos , Idoso , Estudos de Casos e Controles , Transtornos Cognitivos/patologia , Feminino , Humanos , Interpretação de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos
16.
Am J Community Psychol ; 55(1-2): 228-38, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25576016

RESUMO

Social media are found to facilitate social information exchange among lesbian, gay, and bisexual (LGB) individuals who are subjected to social stigma. This study tested the protective role of LGB-tailored social media uses and gratifications in promoting LGB group membership, which we hypothesized to reduce LGB stigma and enhance mental health among LGB individuals in Hong Kong. Based on a sample of 233 Chinese LGB individuals in Hong Kong, structural equation modeling showed evidence for our hypotheses, χ(df=62)(2)= 88.20, GFI = 0.95, CFI = 0.98, NNFI = 0.98, SRMR = 0.07, RMSEA = 0.04. Community surveillance, identity expression, and emotional support on social media may promote mental health by instilling a sense of group membership and reducing stigma. Social media may build camaraderie and bolster resilience among LGB individuals that may otherwise be difficult in conservative regions.


Assuntos
Bissexualidade/psicologia , Homossexualidade/psicologia , Saúde Mental , Capital Social , Identificação Social , Mídias Sociais , Estigma Social , Adolescente , Adulto , Feminino , Hong Kong , Humanos , Masculino , Fatores de Proteção , Apoio Social , Adulto Jovem
17.
Sci Rep ; 14(1): 10755, 2024 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-38729989

RESUMO

Predicting the course of neurodegenerative disorders early has potential to greatly improve clinical management and patient outcomes. A key challenge for early prediction in real-world clinical settings is the lack of labeled data (i.e., clinical diagnosis). In contrast to supervised classification approaches that require labeled data, we propose an unsupervised multimodal trajectory modeling (MTM) approach based on a mixture of state space models that captures changes in longitudinal data (i.e., trajectories) and stratifies individuals without using clinical diagnosis for model training. MTM learns the relationship between states comprising expensive, invasive biomarkers (ß-amyloid, grey matter density) and readily obtainable cognitive observations. MTM training on trajectories stratifies individuals into clinically meaningful clusters more reliably than MTM training on baseline data alone and is robust to missing data (i.e., cognitive data alone or single assessments). Extracting an individualized cognitive health index (i.e., MTM-derived cluster membership index) allows us to predict progression to AD more precisely than standard clinical assessments (i.e., cognitive tests or MRI scans alone). Importantly, MTM generalizes successfully from research cohort to real-world clinical data from memory clinic patients with missing data, enhancing the clinical utility of our approach. Thus, our multimodal trajectory modeling approach provides a cost-effective and non-invasive tool for early dementia prediction without labeled data (i.e., clinical diagnosis) with strong potential for translation to clinical practice.


Assuntos
Encéfalo , Demência , Imageamento por Ressonância Magnética , Humanos , Masculino , Feminino , Demência/diagnóstico , Demência/diagnóstico por imagem , Encéfalo/diagnóstico por imagem , Encéfalo/patologia , Idoso , Imageamento por Ressonância Magnética/métodos , Cognição/fisiologia , Progressão da Doença , Biomarcadores , Idoso de 80 Anos ou mais , Doença de Alzheimer/diagnóstico por imagem , Doença de Alzheimer/diagnóstico , Peptídeos beta-Amiloides/metabolismo
18.
J Affect Disord ; 332: 327-340, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-37060952

RESUMO

BACKGROUND: People living with depression are subjected to widespread stigmatization worldwide. Self-stigma may negatively affect patients' treatment, recovery, and psychological well-being. This review aims to summarize and synthesize the evidence on the prevalence, risk, and protective factors of depression self-stigma. METHODS: Four online databases, PubMed, PsycINFO, Web of Science, and Embase, were searched to identify eligible studies. Fifty-six studies involving a total of 11,549 samples were included in the final analysis. Four reviewers independently screened the literature, extracted data, and assessed the risk of bias in eligible studies. Pearson's r was chosen as the effect size metric of risk and protective factors. RESULTS: The results showed that the global prevalence of depression self-stigma was 29 %. Levels of self-stigma varied across regions, but this difference was not significant. Two demographic factors were identified: ethnicity (r = 0.10, p < 0.05) and having a partner/married (r = -0.22, p < 0.001). Five risk factors were identified: depression severity (r = 0.33, p < 0.01), public stigma (r = 0.44, p < 0.001), treatment stigma (r = 0.46, p < 0.001), perceived stigma (r = 0.37, p < 0.001), and enacted stigma (r = 0.71, p < 0.001). Five protective factors were identified: quality of life (r = -0.38, p < 0.001), social relationship (r = -0.26, p < 0.05), self-esteem (r = -0.46, p < 0.001), extroversion (r = -0.32, p < 0.001), and social functioning (r = -0.49, p < 0.001). LIMITATIONS: Heterogeneity was observed in some of the results. Causality cannot be inferred due to the predominance of cross-sectional designs among the included literature. CONCLUSIONS: Risk and protective factors of depression self-stigma exist across many dimensions. Future research should examine the inner mechanisms and effectiveness of interventions to reduce stigma.


Assuntos
Depressão , Qualidade de Vida , Humanos , Depressão/terapia , Prevalência , Fatores de Proteção , Estudos Transversais , Estigma Social
19.
J Alzheimers Dis ; 92(2): 445-455, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36776060

RESUMO

BACKGROUND: Neuroinflammation has been postulated to play an important role in cognitive impairment, cognitive decline, and dementia. Inflammatory biomarkers such as interleukin-6 (IL-6) and IL-8 are found to be associated with the neuro-inflammatory process and worse cognitive function. However, it is unknown whether these interleukins are associated with long-term cognitive function. OBJECTIVE: To investigate the association of baseline IL-6 and IL-8 with cognitive function at baseline as well as its association with cognitive decline over five-year follow-up. METHODS: 387 patients were recruited from an ongoing memory clinic-based study who underwent comprehensive physical, medical, neuropsychological and blood assessments together with brain MRI. IL-6 and IL-8 were measured using LUMINEX assays. The National Institute of Neurological Disorders and Stroke-Canadian Stroke Network neuropsychological battery was used to assess cognitive decline across multiple domains. RESULTS: Among the 387 (mean age = 72.9 years and 53.7% males) participants, 322 had at least two follow-up assessments and were included in the longitudinal analysis. Negative linear trend associations were found between tertiles of IL-8 with baseline global cognition (p-trend< 0.001), attention (p-trend = 0.005), executive function (p-trend< 0.001), and visuospatial function (p-trend = 0.002) domains. No association was found between baseline IL-8 and cognitive decline. IL-6 was not associated with both baseline and follow-up cognition. CONCLUSION: IL-8 was associated with worse cognition especially in attention, executive function, and visuospatial function, suggesting the role of neuroinflammation in cognitive impairment. Hence, blood inflammatory biomarkers may be useful indicators in identifying patients at risk of cognitive impairment and warrant consideration for inclusion in treatment trials.


Assuntos
Disfunção Cognitiva , Interleucina-6 , Masculino , Humanos , Idoso , Feminino , Interleucina-8 , Doenças Neuroinflamatórias , Testes Neuropsicológicos , Canadá , Cognição , Biomarcadores
20.
Brain Commun ; 5(4): fcad192, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37483530

RESUMO

How beta-amyloid accumulation influences brain atrophy in Alzheimer's disease remains contentious with conflicting findings. We aimed to elucidate the correlations of regional longitudinal atrophy with cross-sectional regional and global amyloid in individuals with mild cognitive impairment and no cognitive impairment. We hypothesized that greater cortical thinning over time correlated with greater amyloid deposition, particularly within Alzheimer's disease characteristic regions in mild cognitive impairment, and weaker or no correlations in those with no cognitive impairment. 45 patients with mild cognitive impairment and 12 controls underwent a cross-sectional [11C]-Pittsburgh Compound B PET and two retrospective longitudinal structural imaging (follow-up: 23.65 ± 2.04 months) to assess global/regional amyloid and regional cortical thickness, respectively. Separate linear mixed models were constructed to evaluate relationships of either global or regional amyloid with regional cortical thinning longitudinally. In patients with mild cognitive impairment, regional amyloid in the right banks of the superior temporal sulcus was associated with longitudinal cortical thinning in the right medial orbitofrontal cortex (P = 0.04 after False Discovery Rate correction). In the mild cognitive impairment group, greater right banks amyloid burden and less cortical thickness in the right medial orbitofrontal cortex showed greater visual and verbal memory decline over time, which was not observed in controls. Global amyloid was not associated with longitudinal cortical thinning in any locations in either group. Our findings indicate an increasing influence of amyloid on neurodegeneration and memory along the preclinical to prodromal spectrum. Future multimodal studies that include additional biomarkers will be well-suited to delineate the interplay between various pathological processes and amyloid and memory decline, as well as clarify their additive or independent effects along the disease deterioration.

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