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1.
Psychosom Med ; 86(3): 181-191, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38436661

RESUMO

OBJECTIVE: Inflammation may be an integral physiological mechanism through which discrimination impacts cardiovascular health and contributes to racial health disparities. Limited research has examined psychosocial factors that protect against the negative effects of discrimination on inflammation. Perceived control is a promising possible protective factor, given that it has been shown to moderate the relationship between other psychosocial stressors and physiological outcomes. This study thus tested whether systemic inflammation mediated the link between discrimination and cardiovascular health and whether perceived control moderated this relationship. METHODS: Data for this project included 347 non-Hispanic/Latinx Black adults (mean [standard deviation] age = 51.64 [11.24] years; 33% female) taken from the Midlife in the United States study. Perceived control and daily discrimination were assessed via self-report, and inflammation was measured via circulating levels of C-reactive protein (CRP), interleukin-6 (IL-6), fibrinogen, and tumor necrosis factor α. Cardiovascular health was measured by morbidity of cardiovascular conditions: heart disease, hypertension, and/or stroke. RESULTS: CRP (indirect effect: b = 0.004, 95% confidence interval [CI] = 0.001-0.007) and fibrinogen (indirect effect: b = 0.002, 95% CI = 0.0003-0.005) mediated the link between discrimination and cardiovascular conditions. Perceived control moderated the relationship between discrimination and CRP ( F (1, 293) = 4.58, Δ R2 = 0.013, b = -0.02, SE = 0.01, p = .033). CRP mediated the link between discrimination and cardiovascular conditions only for those who reported low levels of perceived control (Index = -0.003, 95% CI = -0.007 to -0.0001). CONCLUSION: Findings provide empirical evidence of inflammation as a mechanism linking discrimination to cardiovascular conditions among Black Americans. Additionally, perceived control may be protective. Findings could suggest beliefs about control as a potential intervention target to help reduce the negative effects of discrimination on cardiovascular health among Black Americans.


Assuntos
Doenças Cardiovasculares , Racismo , Adulto , Humanos , Feminino , Estados Unidos/epidemiologia , Pessoa de Meia-Idade , Masculino , Negro ou Afro-Americano , Fatores de Proteção , Inflamação , Proteína C-Reativa/análise , Doenças Cardiovasculares/epidemiologia , Fibrinogênio , Racismo/psicologia , Brancos
2.
Am J Orthopsychiatry ; 93(3): 177-187, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36931838

RESUMO

Black Americans are diagnosed with schizophrenia spectrum disorders at more than twice the rate of White individuals and experience significantly worse outcomes following diagnosis. Little research has examined specific factors that may contribute to worse functional outcomes among Black Americans diagnosed with schizophrenia. One approach to understanding why racial disparities emerge is to examine established predictors of functioning in this population: neurocognition, social cognition, and symptom severity. The present study aims to broaden existing literature on racial differences within these domains by (a) examining racial differences in functioning and these established predictors of functioning (i.e., neurocognition, social, and symptom severity) and (b) investigating whether cognition and symptom domains similarly predict functioning between Black and White Americans with schizophrenia. Sixty-six participants' baseline neurocognition, social cognition, symptom severity, and functioning were assessed. Black participants demonstrated lower neurocognition scores and higher levels of disorganized symptoms relative to White participants. No racial differences in functioning or social cognition were observed. Further, race did not moderate the relationship between any of these established predictors and functioning outcomes. The largely nonsignificant differences in known predictors of functioning highlight the need to explore further domains that may be more relevant for understanding racial disparities in schizophrenia. Considering that psychosocial treatments for schizophrenia spectrum disorders often focus on cognition, these results underscore the importance of identifying whether these domains or other treatment targets may be better in addressing racial disparities in functioning. Possible areas of exploration for future work (e.g., structural factors, racism-related stress) are discussed. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Racismo , Esquizofrenia , Humanos , Negro ou Afro-Americano , Cognição , Brancos
3.
Soc Psychiatry Psychiatr Epidemiol ; 58(1): 77-89, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35932309

RESUMO

PURPOSE: In the US, Black people diagnosed with schizophrenia experience worse psychosocial and clinical outcomes than their White counterparts. While racism-related factors contribute to these disparities, an additional understudied explanation may be that psychosocial treatments for psychotic disorders are less effective for Black than White individuals. The purpose of this study is to examine the extent to which best treatment practices for first-episode psychosis (FEP) are effective for Black and White participants. METHODS: We conducted a secondary data analysis of the Recovery After an Initial Schizophrenia Episode Early Treatment Program (RAISE-ETP), a two-year multisite trial that compared a coordinated specialty care intervention for FEP (NAVIGATE) to community care as usual (CC) in 34 sites across the US. Specifically, we compared interviewer-rated quality of life and symptoms, as well as self-reported mental health and stigma, between 139 Non-Latinx Black and 172 Non-Latinx White participants with FEP in NAVIGATE and CC. RESULTS: We found few differences between Black and White participants over two-year outcomes, either overall or in terms of benefit from NAVIGATE. Across both treatment conditions, Black participants improved less than White participants on positive symptoms, an effect driven primarily by suspiciousness/persecution. In NAVIGATE, self-reported mental health stigma decreased for both Black and White participants, while in CC stigma decreased for White participants but increased for Black participants. This effect was driven primarily by experienced stigma rather than self-stigma. CONCLUSION: NAVIGATE benefits both Black and White individuals diagnosed with FEP. Mental health stigma and positive symptoms may be particularly important aspects of treatment for Black individuals diagnosed with FEP.


Assuntos
Transtornos Psicóticos , Esquizofrenia , Humanos , Negro ou Afro-Americano , Transtornos Psicóticos/psicologia , Qualidade de Vida , Esquizofrenia/terapia
4.
J Ment Health ; 31(3): 357-365, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33527859

RESUMO

BACKGROUND: Premature mortality in individuals with schizophrenia spectrum disorders (SSDs) is largely due to high rates of chronic health conditions. Although exercise has been shown to improve health in this population, scalable and accessible interventions are limited. AIM: To examine the impact of Physical Activity Can Enhance Life (PACE-Life), a novel walking intervention, on physical activity, and on secondary outcomes of cardiorespiratory fitness (CRF), physical health, autonomous motivation, social support, and quality of life. METHOD: Sixteen individuals with SSDs were enrolled in a 10-week open trial. The intervention included walking groups, home-based walks, Fitbit use, and goal-setting and if-then plans. Within-group effect sizes were calculated to represent changes from baseline to post-test and 1-month follow-up. RESULTS: Participants increased self-reported weekly walking minutes and decreased daily hours spent sitting; however, Fitbit-recorded exercise behavior changed only minimally. There were also improvements in secondary outcomes including autonomous motivation and hip circumference. CRF improved only minimally, and findings were relatively unchanged with outliers removed from the full sample. CONCLUSIONS: This open trial demonstrates modest improvements in key parameters of exercise behavior and physical health from participating in PACE-Life. Future research should assess the efficacy of this intervention in a randomized controlled trial.


Assuntos
Qualidade de Vida , Esquizofrenia , Doença Crônica , Exercício Físico , Humanos , Esquizofrenia/terapia , Caminhada
5.
Curr Top Behav Neurosci ; 54: 373-392, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34796448

RESUMO

As humans, we face a variety of social stressors on a regular basis. Given the established role of social stress in influencing physical and psychological functioning, researchers have focused immense efforts on understanding the psychological and physiological changes induced by exposure to acute social stressors. With the advancement of functional magnetic resonance imaging (fMRI), more recent work has sought to identify the neural correlates of processing acute social stress. In this review, we provide an overview of research on the neural underpinnings of social stress processing to date. Specifically, we summarize research that has examined the neural underpinnings of three types of social stressors commonly studied in the literature: social rejection, social evaluation, and racism-related stress. Within our discussion of each type of social stressor, we describe the methods used to induce stress, the brain regions commonly activated among studies investigating that type of stress, and recommendations for future work. This review of the current literature identifies activity in midline regions in both prefrontal and parietal cortices, as well as lateral prefrontal regions, as being associated with processing social rejection. Activity in the insula, thalamus, and inferior frontal gyrus is often found in studies using social evaluation tasks. Finally, racism-related stress is associated with activity in the ventrolateral prefrontal cortex and rostral anterior cingulate cortex. We conclude by taking a "30,000-foot view" of this area of research to provide suggestions for the future of research on the neuroscience of social stress.


Assuntos
Encéfalo , Imageamento por Ressonância Magnética , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Giro do Cíngulo , Humanos , Córtex Pré-Frontal , Estresse Psicológico
6.
Am Psychol ; 77(9): 1049-1060, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36595402

RESUMO

Racial disparities in health are a major public health problem in the United States, especially when comparing chronic disease morbidity and mortality for Black versus White Americans. These health disparities are primarily due to insidious anti-Black racism that permeates American history, current culture and institutions, and interpersonal interactions. But how does racism get under the skull and the skin to influence brain and bodily processes that impact the health of Black Americans? In the present article, we present a model describing the possible neural and inflammatory mechanisms linking racism and health. We hypothesize that racism influences neural activity and connectivity in the salience and default mode networks of the brain and disrupts interactions between these networks and the executive control network. This pattern of neural functioning in turn leads to greater sympathetic nervous system signaling, hypothalamic-pituitary-adrenal axis activation, and increased expression of genes involved in inflammation, ultimately leading to higher levels of proinflammatory cytokines in the body and brain. Over time, these neural and physiological responses can lead to chronic physical and mental health conditions, disrupt well-being, and cause premature mortality. Given that research in this area is underdeveloped to date, we emphasize opportunities for future research that are needed to build a comprehensive mechanistic understanding of the brain-body pathways linking anti-Black racism and health. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Negro ou Afro-Americano , Racismo , Humanos , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal , Grupos Raciais , Racismo/psicologia , Estados Unidos , População Branca , Inflamação , Doença Crônica
7.
Soc Cogn Affect Neurosci ; 16(9): 903-914, 2021 09 07.
Artigo em Inglês | MEDLINE | ID: mdl-33760100

RESUMO

Roughly 20 years of functional magnetic resonance imaging (fMRI) studies have investigated the neural correlates underlying engagement in social cognition (e.g. empathy and emotion perception) about targets spanning various social categories (e.g. race and gender). Yet, findings from individual studies remain mixed. In the present quantitative functional neuroimaging meta-analysis, we summarized across 50 fMRI studies of social cognition to identify consistent differences in neural activation as a function of whether the target of social cognition was an in-group or out-group member. We investigated if such differences varied according to a specific social category (i.e. race) and specific social cognitive processes (i.e. empathy and emotion perception). We found that social cognition about in-group members was more reliably related to activity in brain regions associated with mentalizing (e.g. dorsomedial prefrontal cortex), whereas social cognition about out-group members was more reliably related to activity in regions associated with exogenous attention and salience (e.g. anterior insula). These findings replicated for studies specifically focused on the social category of race, and we further found intergroup differences in neural activation during empathy and emotion perception tasks. These results help shed light on the neural mechanisms underlying social cognition across group lines.


Assuntos
Imageamento por Ressonância Magnética , Cognição Social , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Cognição , Humanos , Córtex Pré-Frontal
8.
Neurosci Biobehav Rev ; 105: 212-219, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31415864

RESUMO

The current meta-analysis explored relationships between functional outcomes in schizophrenia spectrum disorders and different domains of neurocognition and social cognition. Literature searches were conducted in PsycINFO, PubMed, and ProQuest to identify articles reporting correlations between cognition domains and functional outcomes. Of 1361 articles identified, 166 met all inclusion criteria (12,868 participants; 518 correlations). Fifty-three random-effects meta-analyses yielded mean correlation estimates for relationships between neurocognition and social cognition and functional outcomes. Overall, associations between social cognition and neurocognition, and functional outcomes demonstrated significant small-to-medium effect sizes. Social cognition explained more unique variance in functioning than neurocognition (7.3% vs. 4.4%; 9.2% total average variance). Social cognition also mediated the relationship between neurocognition and functional outcomes. A significant proportion of the variance in the relationships between cognition and functional outcomes remained unexplained. These findings suggest that integrated interventions targeting both neurocognition and social cognition may optimally improve functional outcomes. Standardized measurement of cognition and functioning, longitudinal studies, and tests of additional moderators (e.g., first episode samples) in future research were identified as important future directions.


Assuntos
Encéfalo/fisiopatologia , Transtornos Psicóticos/fisiopatologia , Esquizofrenia/fisiopatologia , Comportamento Social , Percepção Social , Humanos
9.
Schizophr Res ; 195: 448-454, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29033282

RESUMO

Positive psychology interventions that integrate a person's strengths into treatment result in improvements in life satisfaction and well-being. Character strengths classified within six core virtues (wisdom/knowledge, courage, humanity, justice, temperance, and transcendence) have been the subject of substantial research. Though a number of studies have been conducted in the general population, little is known about the character strengths of individuals with first episode psychosis (FEP). Moreover, positive psychology principles, in particular a focus on personal strengths, have been increasingly integrated into FEP treatment and was a core component of Individual Resiliency Training (IRT), the individual therapy component of NAVIGATE tested in the Recovery After an Initial Schizophrenia Episode Early Treatment Program. As such, the present study offers an examination of character strengths among 105 FEP clients in specialized early intervention treatment. The present study included two primary aims: 1) to conduct a descriptive analysis of character strengths of FEP individuals and 2) to examine exploratory associations between character strengths and changes in symptomatic and recovery variables over six months. Results revealed that the most commonly identified strengths were: Honesty, Authenticity, and Genuineness (40.95%), Kindness and generosity (37.14%), Fairness, equity, and justice (29.52%), Gratitude (29.52%), and Humor and playfulness (29.52%). Three virtues (Humanity, Justice, and Transcendence) were significantly associated with improvements in symptoms, psychological well-being, and interpersonal relations over six months. Overall, the present study offers a glimpse into how persons with FEP view their strengths and how certain clusters of strengths are related to important outcomes.


Assuntos
Personalidade , Psicoterapia/métodos , Transtornos Psicóticos/psicologia , Transtornos Psicóticos/reabilitação , Resiliência Psicológica , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Masculino , Educação de Pacientes como Assunto/métodos , Análise de Regressão , Autorrelato , Resultado do Tratamento , Adulto Jovem
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