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1.
Learn Health Syst ; 8(Suppl 1): e10416, 2024 Jun.
Article de Anglais | MEDLINE | ID: mdl-38883875

RÉSUMÉ

Introduction: Behavioral measurement-based care (MBC) can improve patient outcomes and has also been advanced as a critical learning health system (LHS) tool for identifying and mitigating potential disparities in mental health treatment. However, little is known about the uptake of remote behavioral MBC in safety net settings, or possible disparities occurring in remote MBC implementation. Methods: This study uses electronic health record data to study variation in completion rates at the clinic and patient level of a remote MBC symptom measure tool during the first 6 months of implementation at three adult outpatient psychiatry clinics in a safety net health system. Provider-reported barriers to MBC adoption were also measured using repeated surveys at one of the three sites. Results: Out of 1219 patients who were sent an MBC measure request, uptake of completing at least one measure varied by clinic: General Adult Clinic, 38% (n = 262 of 696); Substance Use Clinic, 28% (n = 73 of 265); and Transitions Clinic, 17% (n = 44 of 258). Compared with White patients, Black and Portuguese or Brazilian patients had lower uptake. Older patients also had lower uptake. Spanish language of care was associated with much lower uptake at the patient level. Significant patient-level disparities in uptake persisted after adjusting for the clinic, mental health diagnoses, and number of measure requests sent. Providers cited time within visits and bandwidth in their workflow as the greatest consistent barriers to discussing MBC results with patients. Conclusions: There are significant disparities in MBC uptake at the patient and clinic level. From an LHS data infrastructure perspective, safety net health systems may need to address the need for possible ways to adapt MBC to better fit their populations and clinical needs, or identify targeted implementation strategies to close data gaps for the identified disparity populations.

2.
JMIR Ment Health ; 10: e48112, 2023 Oct 26.
Article de Anglais | MEDLINE | ID: mdl-37883149

RÉSUMÉ

BACKGROUND: The COVID-19 pandemic involved a prolonged period of collective trauma and stress during which substantial increases in mental health concerns, like depression and anxiety, were observed across the population. In this context, CHAMindWell was developed as a web-based intervention to improve resilience and reduce symptom severity among a public health care system's patient population. OBJECTIVE: This program evaluation was conducted to explore participants' engagement with and outcomes from CHAMindWell by retrospectively examining demographic information and mental health symptom severity scores throughout program participation. METHODS: We examined participants' symptom severity scores from repeated, web-based symptom screenings through Computerized Adaptive Testing for Mental Health (CAT-MH) surveys, and categorized participants into symptom severity-based tiers (tier 1=asymptomatic to mild; tier 2=moderate; and tier 3=severe). Participants were provided tier-based mindfulness resources, treatment recommendations, and referrals. Logistic regressions were conducted to evaluate associations between demographic variables and survey completion. The McNemar exact test and paired sample t tests were performed to evaluate changes in the numbers of participants in tier 1 versus tier 2 or 3 and changes in depression, anxiety, and posttraumatic stress disorder severity scores between baseline and follow-up. RESULTS: The program enrolled 903 participants (664/903, 73.5% female; 556/903, 61.6% White; 113/903, 12.5% Black; 84/903, 9.3% Asian; 7/903, 0.8% Native; 36/903, 4% other; and 227/903, 25.1% Hispanic) between December 16, 2020, and March 17, 2022. Of those, 623 (69%) completed a baseline CAT-MH survey, and 196 completed at least one follow-up survey 3 to 6 months after baseline. White racial identity was associated with completing baseline CAT-MH (odds ratio [OR] 1.80, 95% CI 1.14-2.84; P=.01). Participants' odds of having symptom severity below the clinical threshold (ie, tier 1) were significantly greater at follow-up (OR 2.60, 95% CI 1.40-5.08; P=.001), and significant reductions were observed across symptom domains over time. CONCLUSIONS: CHAMindWell is associated with reduced severity of mental health symptoms. Future work should aim to address program engagement inequities and attrition and compare the impacts of CHAMindWell to a control condition to better characterize its effects.

3.
Community Ment Health J ; 58(8): 1428-1436, 2022 11.
Article de Anglais | MEDLINE | ID: mdl-35352203

RÉSUMÉ

Achieving population behavioral health is urgently needed. The mental health system struggles with enormous challenges of providing access to mental health services, improving quality and equitability of care, and ensuring good health outcomes across subpopulations. Little data exists about increasing access within highly constrained resources, staging/sequencing treatment along care pathways, or personalizing treatments. The conceptual model of the learning healthcare system offers a potential paradigm shift for addressing these challenges. In this article we present an overview of how the three constructs of population health, learning health systems, and measurement-based care are inter-related, and we provide an example of how one academic, community-based, safety net health system is approaching integrating these paradigms into its service delivery system. Implementation outcomes will be described in a subsequent publication. We close by discussing how ultimately, to meaningfully improve population behavioral health, a learning healthcare system could expand into a learning health community in order to target critical points of prevention and intervention.


Sujet(s)
Système de santé apprenant , Santé de la population , Humains , Santé mentale
4.
Mindfulness (N Y) ; 12(5): 1041-1062, 2021 May.
Article de Anglais | MEDLINE | ID: mdl-34149957

RÉSUMÉ

OBJECTIVES: Mindfulness-based interventions (MBIs) have been widely implemented to improve self-regulation behaviors, often by targeting emotion-related constructs to facilitate change. Yet the degree to which MBIs engage specific measures of emotion-related constructs has not been systematically examined. METHODS: Using advanced meta-analytic techniques, this review examines construct and measurement engagement in trials of adults that used standardized applications of the two most established MBIs: Mindfulness-Based Stress Reduction (MBSR) and Mindfulness-Based Cognitive Therapy (MBCT), or modified variations of these interventions that met defined criteria. RESULTS: Seventy-two studies (N=7,378) were included (MBSR k=47, MBCT k = 21, Modified k=4). MBIs led to significant improvement in emotion-related processing overall, compared to inactive controls (d=0.58; k =36), and in all constructs assessed: depression (d=0.66; k=26), anxiety (d =0.63; k=19), combined mental health (d =0.75; k=7 ) and stress (d =0.44; k=11). Reactions to pain, mood states, emotion regulation, and biological measures lacked sufficient data for analysis. MBIs did not outperform active controls in any analyses. Measurement tool and population-type did not moderate results, but MBI-type did, in that MBCT showed stronger effects than MBSR, although these effects were driven by a small number of studies. CONCLUSIONS: This review is the first to examine the full scope of emotion-related measures relevant to self-regulation, to determine which measures are most influenced by MBCT/MBSR. Compared to extant reviews, which typically focused on MBI outcomes, this work examined mechanistic processes based on measurement domains and tools. While effect sizes were similar among measurement tools, this review also includes a descriptive evaluation of measures and points of caution, providing guidance to MBI researchers and clinicians for selection of emotion-related measurement tools.

5.
Psychiatr Serv ; 72(10): 1225-1228, 2021 10 01.
Article de Anglais | MEDLINE | ID: mdl-33882680

RÉSUMÉ

The COVID-19 pandemic has been expected to lead to substantial increases in need for behavioral health care. A population health framework can facilitate the development of interventions and policies to promote the equitable distribution of care across the population. This column describes the application of population behavioral health principles in a safety-net health system during the pandemic. The approach includes stepped models of care, interventions to target individuals at high behavioral health risk, and measurement-based care. Early data suggest that these strategies have resulted in expanded behavioral health care capacity.


Sujet(s)
COVID-19 , Santé de la population , Programmes gouvernementaux , Humains , Pandémies , SARS-CoV-2
6.
PLoS One ; 16(1): e0244847, 2021.
Article de Anglais | MEDLINE | ID: mdl-33428638

RÉSUMÉ

Obesity is associated with significant comorbidities and financial costs. While behavioral interventions produce clinically meaningful weight loss, weight loss maintenance is challenging. The objective was to improve understanding of the neural and psychological mechanisms modified by mindfulness that may predict clinical outcomes. Individuals who intentionally recently lost weight were randomized to Mindfulness-Based Stress Reduction (MBSR) or a control healthy living course. Anthropometric and psychological factors were measured at baseline, 8 weeks and 6 months. Functional connectivity (FC) analysis was performed at baseline and 8 weeks to examine FC changes between regions of interest selected a priori, and independent components identified by independent component analysis. The association of pre-post FC changes with 6-month weight and psychometric outcomes was then analyzed. Significant group x time interaction was found for FC between the amygdala and ventromedial prefrontal cortex, such that FC increased in the MBSR group and decreased in controls. Non-significant changes in weight were observed at 6 months, where the mindfulness group maintained their weight while the controls showed a weight increase of 3.4% in BMI. Change in FC at 8-weeks between ventromedial prefrontal cortex and several ROIs was associated with change in depression symptoms but not weight at 6 months. This pilot study provides preliminary evidence of neural mechanisms that may be involved in MBSR's impact on weight loss maintenance that may be useful for designing future clinical trials and mechanistic studies.


Sujet(s)
Amygdale (système limbique)/physiologie , Pleine conscience , Réseau nerveux/physiopathologie , Stress psychologique/physiopathologie , Stress psychologique/psychologie , Perte de poids , Adulte , Amygdale (système limbique)/imagerie diagnostique , Indice de masse corporelle , Femelle , Humains , Imagerie par résonance magnétique , Mâle , Réseau nerveux/imagerie diagnostique , Projets pilotes , Stress psychologique/imagerie diagnostique
7.
Harv Rev Psychiatry ; 28(6): 371-394, 2020.
Article de Anglais | MEDLINE | ID: mdl-33156156

RÉSUMÉ

Initiating and maintaining behavior change is key to the prevention and treatment of most preventable chronic medical and psychiatric illnesses. The cultivation of mindfulness, involving acceptance and nonjudgment of present-moment experience, often results in transformative health behavior change. Neural systems involved in motivation and learning have an important role to play. A theoretical model of mindfulness that integrates these mechanisms with the cognitive, emotional, and self-related processes commonly described, while applying an integrated model to health behavior change, is needed. This integrative review (1) defines mindfulness and describes the mindfulness-based intervention movement, (2) synthesizes the neuroscience of mindfulness and integrates motivation and learning mechanisms within a mindful self-regulation model for understanding the complex effects of mindfulness on behavior change, and (3) synthesizes current clinical research evaluating the effects of mindfulness-based interventions targeting health behaviors relevant to psychiatric care. The review provides insight into the limitations of current research and proposes potential mechanisms to be tested in future research and targeted in clinical practice to enhance the impact of mindfulness on behavior change.


Sujet(s)
Comportement en matière de santé , Troubles mentaux/thérapie , Pleine conscience , Humains , Troubles mentaux/psychologie , Motivation , Sang-froid , Gestion de soi
8.
Curr Opin Psychol ; 28: 279-284, 2019 08.
Article de Anglais | MEDLINE | ID: mdl-30995594

RÉSUMÉ

A large and growing body of work has examined the effects of Mindfulness-Based Interventions (MBI's), such as Mindfulness-Based Stress Reduction and Mindfulness-Based Cognitive Therapy, on emotion-related outcomes, both in mental health settings and general populations. These studies vary widely in the approach to measurement of emotion-related measurements after MBI's. A systematic review of randomized clinical trials of MBIs was conducted with a focus on identifying what emotion-related assays were able to detect changes with MBI's, including scales and instruments (both self-report and clinician-rated) on constructs such as depression, anxiety, emotion regulation, and other mood states. In this paper, we reflect on these findings and discuss considerations of outcome measures in MBI research. There are previously established practices for clinical trials research on emotion-related outcomes which may provide some useful methodological standards and study design options for use by the MBI research field.


Sujet(s)
Affect , Anxiété/thérapie , Recherche biomédicale , Dépression/thérapie , Régulation émotionnelle , Pleine conscience , Humains
9.
Explore (NY) ; 14(1): 66-75, 2018.
Article de Anglais | MEDLINE | ID: mdl-29242080

RÉSUMÉ

PURPOSE: This study uses participatory research methods with survivors of homicide and their service providers to explore the feasibility and acceptability of a culturally adapted mindfulness intervention for stress reduction and resilience in homicide survivors. PROCEDURES: Our mixed methods approach included: (a) previewing a Mindfulness-Based Stress Reduction program with providers and survivors; (b) using their iterative feedback during focus groups to revise the curriculum; and (c) studying the acceptability of the adapted curriculum for survivors through focus group and standardized data collection. FINDINGS: We learned that providers use mindfulness for self-care and both providers and survivors view the approach for survivors as promising. Based on attendance, participation, and focus group data, the adapted curriculum was both feasible and acceptable. Survivors' reports suggested most experienced improved emotion regulation, feelings of empowerment, and better coping. CONCLUSIONS: Culturally adapted mindfulness programs may support healing for homicide survivors and possibly other low-income people of color with significant trauma backgrounds. Further investigation is needed to rigorously assess outcomes and specific effects, both positive and negative, of mindfulness in this and other more diversified populations.


Sujet(s)
Homicide/psychologie , Pleine conscience/méthodes , Survivants/psychologie , Adulte , Recherche participative basée sur la communauté , Culture (sociologie) , Études de faisabilité , Femelle , Humains , Massachusetts , Adulte d'âge moyen , Minorités/psychologie , Projets pilotes
10.
Psychiatry Res Neuroimaging ; 264: 22-28, 2017 Jun 30.
Article de Anglais | MEDLINE | ID: mdl-28412558

RÉSUMÉ

Mindfulness is paying attention, non-judgmentally, to experience in the moment. Mindfulness training reduces depression and anxiety and influences neural processes in midline self-referential and lateralized somatosensory and executive networks. Although mindfulness benefits emotion regulation, less is known about its relationship to anger and the corresponding neural correlates. This study examined the relationship of mindful awareness and brain hemodynamics of angry face processing, and the impact of mindfulness training. Eighteen healthy volunteers completed an angry face processing fMRI paradigm and measurement of mindfulness and anger traits. Ten of these participants were recruited from a Mindfulness-Based Stress Reduction (MBSR) class and also completed imaging and other assessments post-training. Self-reported mindful awareness increased after MBSR, but trait anger did not change. Baseline mindful awareness was negatively related to left inferior parietal lobule activation to angry faces; trait anger was positively related to right middle frontal gyrus and bilateral angular gyrus. No significant pre-post changes in angry face processing were found, but changes in trait mindful awareness and anger were associated with sub-threshold differences in paralimbic activation. These preliminary and hypothesis-generating findings, suggest the analysis of possible impact of mindfulness training on anger may begin with individual differences in angry face processing.


Sujet(s)
Colère/physiologie , Conscience immédiate/physiologie , Encéphale/physiologie , Expression faciale , Pleine conscience/méthodes , Adulte , Cartographie cérébrale/méthodes , Femelle , Humains , Imagerie par résonance magnétique/méthodes , Mâle , Adulte d'âge moyen , Stimulation lumineuse/méthodes , Projets pilotes , Jeune adulte
11.
Appetite ; 109: 124-130, 2017 02 01.
Article de Anglais | MEDLINE | ID: mdl-27890474

RÉSUMÉ

Emotional eating is an important predictor of weight loss and weight regain after weight loss. This two part study's primary aim was to explore changes in emotional eating in a general population of individuals taking the Mindfulness Based Stress Reduction (MBSR) program, with a secondary aim to explore whether changes in mindfulness predicted changes in emotional eating. Self-reported survey data exploring these questions were collected before and after the intervention for two sequential studies (Study 1 and Study 2). While there were no control groups for either study, in both studies emotional eating scores following the MBSR were significantly lower than scores prior to taking the MBSR (p < 0.001; p < 0.001) In Study 2, changes in mindfulness were correlated with changes in emotional eating (r = 0.317, p = 0.004). These results suggest that MBSR may be an effective intervention for emotional eating, and that further research is warranted to examine effects on weight loss and maintenance.


Sujet(s)
Symptômes affectifs/thérapie , Consommation alimentaire/psychologie , Troubles de l'alimentation/thérapie , Pleine conscience/méthodes , Stress psychologique/thérapie , Adulte , Symptômes affectifs/psychologie , Troubles de l'alimentation/psychologie , Femelle , Humains , Mâle , Adulte d'âge moyen , Stress psychologique/psychologie , Résultat thérapeutique
12.
BMJ Open ; 6(11): e012573, 2016 11 30.
Article de Anglais | MEDLINE | ID: mdl-27903561

RÉSUMÉ

INTRODUCTION: Obesity is a growing epidemic fuelled by unhealthy behaviours and associated with significant comorbidities and financial costs. While behavioural interventions produce clinically meaningful weight loss, weight loss maintenance is challenging. This may partially be due to failure to target stress and emotional reactivity. Mindfulness-based stress reduction (MBSR) reduces stress and emotional reactivity and may be a useful tool for behaviour change maintenance. This study seeks to provide a mechanistic understanding for clinical trials of the benefits of MBSR for weight loss maintenance by examining changes in functional connectivity (FC) and the association of these changes with clinical outcomes. METHODS AND ANALYSIS: Community-dwelling individuals (n=80) who intentionally lost ≥5% of their body weight in the past year will be recruited and randomised to an MBSR programme or educational control. FC using resting-state functional MRI will be measured at baseline and 8 weeks. Psychological factors, health behaviours, body mass index and waist circumference will be measured at baseline, 8 weeks and 6 months post intervention. A 12-month telephone follow-up will assess self-reported weight. Analyses will characterise FC changes in response to MBSR in comparison with a control condition, assess the relationship between baseline FC status and pre-post MBSR changes in FC and investigate the association of FC change with changes in psychological factors and weight loss maintenance. ETHICS AND DISSEMINATION: The University of Massachusetts Medical School Institutional Review Board has approved this study, Declaration of Helsinki protocols are being followed, and patients will give written informed consent. The Independent Monitoring Committee will monitor protocol adherence. Results from the study will be disseminated to the medical community at conferences and submitted for publication in peer-reviewed journals when the last patient included has been followed up for 12 months. TRIAL REGISTRATION NUMBER: NCT02189187.


Sujet(s)
Thérapie comportementale , Pleine conscience , Obésité/psychologie , Stress psychologique/prévention et contrôle , Adulte , Analyse coût-bénéfice , Femelle , Humains , Imagerie par résonance magnétique , Mâle , Adulte d'âge moyen , Obésité/épidémiologie , Obésité/physiopathologie , Évaluation de programme , Études prospectives , Essais contrôlés randomisés comme sujet , Stress psychologique/épidémiologie , Stress psychologique/psychologie , Résultat thérapeutique , États-Unis/épidémiologie , Programmes de perte de poids
13.
Curr Cardiol Rep ; 17(12): 112, 2015 Dec.
Article de Anglais | MEDLINE | ID: mdl-26482755

RÉSUMÉ

The purpose of this review is to provide (1) a synopsis on relations of mindfulness with cardiovascular disease (CVD) and major CVD risk factors, and (2) an initial consensus-based overview of mechanisms and theoretical framework by which mindfulness might influence CVD. Initial evidence, often of limited methodological quality, suggests possible impacts of mindfulness on CVD risk factors including physical activity, smoking, diet, obesity, blood pressure, and diabetes regulation. Plausible mechanisms include (1) improved attention control (e.g., ability to hold attention on experiences related to CVD risk, such as smoking, diet, physical activity, and medication adherence), (2) emotion regulation (e.g., improved stress response, self-efficacy, and skills to manage craving for cigarettes, palatable foods, and sedentary activities), and (3) self-awareness (e.g., self-referential processing and awareness of physical sensations due to CVD risk factors). Understanding mechanisms and theoretical framework should improve etiologic knowledge, providing customized mindfulness intervention targets that could enable greater mindfulness intervention efficacy.


Sujet(s)
Maladies cardiovasculaires/prévention et contrôle , Pleine conscience , Comportement de réduction des risques , Fumer/effets indésirables , Maladies cardiovasculaires/psychologie , Maladies cardiovasculaires/thérapie , Analyse coût-bénéfice , Médecine factuelle , Humains , Fumer/psychologie
14.
Mindfulness (N Y) ; 6(4): 861-872, 2015 Aug.
Article de Anglais | MEDLINE | ID: mdl-26500708

RÉSUMÉ

Occupational stress and burnout adversely impacts mental health care staff well-being and patient outcomes. Mindfulness training reduces staff stress and may improve patient care. However, few studies explore mental health setting implementation. This qualitative study used focus groups to evaluate stakeholders' perceptions of organizational factors affecting implementation of an adapted version of Mindfulness-Based Stress Reduction (MBSR) for staff on adolescent mental health units. Common facilitators included leadership securing buy-in with staff, allocating staff time to participate, and quiet space for training and practice. Other facilitators were past staff knowledge of mindfulness, local champions, and acculturating staff with mindfulness through a non-mandatory training attendance policy. Common barriers were limited staff time to attend training sessions and insufficient training coverage for some staff. Staff also reported improved focus when interacting with adolescents and improved social cohesion on the units. We conclude that a mindfulness-based program for reducing occupational stress can be successfully implemented on adolescent mental health units. Implementation appeared to change the social context of the units, including staff and patient interactions. More broadly, our findings highlight the importance of environmental factors in shaping attitudes, diffusion of innovation, and acculturation of wellness program implementations.

15.
Article de Anglais | MEDLINE | ID: mdl-28405260

RÉSUMÉ

Obesity affects more than one-third of U.S. adults and is a major cause of preventable morbidity and mortality, primarily from cardiovascular disease. Traditional behavioral interventions for weight loss typically focus on diet and exercise habits and often give little attention to the role of stress and emotions in the initiation and maintenance of unhealthy behaviors, which may account for their modest results and considerable variability in outcomes. Stress eating and emotional eating are increasingly recognized as important targets of weight loss interventions. Mindfulness-based interventions were specifically developed to promote greater self-efficacy in coping with stress and negative emotions, and appear to be effective for a variety of conditions. In recent years researchers have begun to study mindfulness interventions for weight loss and CVD risk management. This review describes the rationale for the use of mindfulness in interventions for weight loss and CVD risk management, summarizes the research to date, and suggests priorities for future research.

16.
J Dual Diagn ; 9(1): 11-22, 2013 Jan 01.
Article de Anglais | MEDLINE | ID: mdl-23543790

RÉSUMÉ

OBJECTIVE: In the context of an increasing correctional population and corresponding rates of mental illness and substance abuse among this population, this study focuses on describing the predictors of substance abuse service utilization for ex-inmates with dual disorders. Our aim is to assess the likelihood and characteristics of ex-inmates with mental disorders who access substance abuse treatment services within two years of correctional release. METHODS: Using merged administrative data on all ex-inmates with open mental health cases released from Massachusetts Department of Corrections and two County Houses of Corrections from 2007 to 2009 (N=2,280) and substance abuse treatment outcome data through 2011, we analyze the influence of demographics, behavioral and mental disorders, and criminal justice variables on entry into substance abuse treatment within 24 months post release. We also describe primary drug use and services utilized for all the ex-inmates who accessed substance abuse services (N=1,383). Regression techniques were used to analyze the probability of utilizing substance abuse treatment services by various demographic, behavioral, and criminal involvement characteristics. RESULTS: The prevalence of a history of substance use disorders is high in this population (69%; n = 1,285). Subsequently, at 24 months post release 61% (n = 1,383) of ex-inmates with open mental health cases utilized substance abuse treatment services. This group was disproportionately female, with a preincarceration history of substance abuse, an increased number of previous incarcerations, and more likely released under correctional supervision. CONCLUSIONS: Substance abuse is a chronic relapsing disorder and dual diagnosis is common among individuals with mental disorders involved with the criminal justice system. Their service needs and contacts across substance abuse, mental health, and criminal justice systems highlight individuals caught up in the institutional circuit. Study results point to the need for expanded and targeted dual diagnosis treatment approaches and relapse prevention for ex-inmates with mental disorders post correctional release.

17.
Psychiatry Res ; 211(1): 24-30, 2013 Jan 30.
Article de Anglais | MEDLINE | ID: mdl-23352275

RÉSUMÉ

Investigations into the specific association of amygdala volume, a critical aspect of the fronto-limbic emotional circuitry, and aggression have produced results broadly consistent with the 'larger is more powerful' doctrine. However, recent reports suggest that the ventral and dorsal aspects of the amygdala play functionally specific roles, respectively, in the activation and control of behavior. Therefore, parceling amygdala volume into dorsal and ventral components might prove productive in testing hypotheses regarding volumetric association to aggression, and impulsivity, a related aspect of self-control. We sought to test this hypothesis in a group of 41 psychiatric patients who received standard magnetic resonance imaging and a psychometric protocol including aggression and impulsivity measures. Whole amygdala volumes were not associated with aggression or impulsivity, but significant correlations were found when dorsal/ventral amygdalae were analyzed separately. Specifically, left and right ventral amygdala volume was positively associated with motor impulsivity, and left dorsal amygdala was negatively associated with aggression. Results are discussed in terms of an activation and control model of brain-behavior relations. Potential relevance to the continuum of amygdala hyper- to hypo-activation and aggression is discussed.


Sujet(s)
Amygdale (système limbique)/anatomopathologie , Comportement impulsif/anatomopathologie , Troubles mentaux/anatomopathologie , Adulte , Agressivité , Cartographie cérébrale , Femelle , Humains , Imagerie par résonance magnétique , Mâle , Adulte d'âge moyen , Taille d'organe
18.
Neuroreport ; 23(10): 606-10, 2012 Jul 11.
Article de Anglais | MEDLINE | ID: mdl-22617448

RÉSUMÉ

An important distinction in research on the neural mechanisms of emotion regulation involves the relatively limited duration of emotional states versus emotional traits that are defined as the stable tendency to experience particular emotions in daily life. Neuroimaging investigations of the regulation of anger states point to the involvement of reciprocal changes in the prefrontal cortex and amygdala activity, but the neural substrate of trait anger has received less attention. We used resting-state functional MRI to determine whether the variation in the strength of functional connectivity between the amygdala and the orbitofrontal cortex is associated with trait anger. Sixteen healthy men completed the Spielberger State-Trait Anger Expression Inventory. Correlational analysis for resting-state functional connectivity (RSFC) was carried out with the left and the right amygdala as separate seed regions. Anger measures were correlated to RSFC involving the right and the left amygdala on a voxel-by-voxel basis across all individuals. We found that Trait Anger was inversely associated with the strength of RSFC between the amygdala and the contralateral middle orbitofrontal cortex. The association was stronger for the right amygdala-left orbitofrontal connection. Anger Control, the tendency to try to control expressions of anger, showed the opposite pattern of being positively correlated with amygdala-orbitofrontal connectivity. The present study provides evidence that RSFC in a corticolimbic circuit might subserve stable differences in anger regulation. Our findings also suggest that RSFC may prove valuable as a trait marker for disorders characterized by emotional dysregulation such as depression, anxiety, and personality disorders.


Sujet(s)
Amygdale (système limbique)/physiologie , Colère/physiologie , Imagerie par résonance magnétique , Réseau nerveux/physiologie , Cortex préfrontal/physiologie , Repos/physiologie , Adulte , Humains , Imagerie par résonance magnétique/méthodes , Mâle , Adulte d'âge moyen , Voies nerveuses/physiologie , Jeune adulte
19.
Eval Program Plann ; 35(4): 461-72, 2012 Nov.
Article de Anglais | MEDLINE | ID: mdl-22436598

RÉSUMÉ

Our study is the first-ever initiative to merge administrative databases in Massachusetts to evaluate an important public mental health program. It examines post-incarceration outcomes of adults with serious mental illness (SMI) enrolled in the Massachusetts Department of Mental Health (DMH) Forensic Transition Team (FTT) program. The program began in 1998 with the goal of transitioning offenders with SMI released from state and local correctional facilities utilizing a core set of transition activities. In this study we evaluate the program's effectiveness using merged administrative data from various state agencies for the years 2007-2011, comparing FTT clients to released prisoners who, despite having serious mental health disorders, did not meet the criterion for DMH services. By systematically describing our original study design and the barriers we encountered, this report will inform future efforts to evaluate public programs using merged administrative databases and electronic health records.


Sujet(s)
Troubles mentaux/thérapie , Services de santé mentale/organisation et administration , Prisonniers/psychologie , Prisonniers/statistiques et données numériques , Mise au point de programmes/méthodes , Pratiques en santé publique/statistiques et données numériques , Adulte , Bases de données comme sujet , Dossiers médicaux électroniques , Femelle , Humains , Mâle , Troubles mentaux/épidémiologie , Facteurs socioéconomiques
20.
Brain Imaging Behav ; 5(1): 52-64, 2011 Mar.
Article de Anglais | MEDLINE | ID: mdl-21210255

RÉSUMÉ

According to bottom-up/top-down models, impulsivity facets are represented across the cerebral cortex and subcortex. Hypothesized gray matter correlates of motor, attentional and non-planning impulsivity were examined in groups of 35 psychiatric patients characterized by self-control problems and 18 healthy volunteers. Among patients, a positive correlation was found between motor impulsivity and the right cerebellum, and a negative correlation emerged between attentional impulsivity and the left lateral orbitofrontal cortex (OFC). Among controls, attentional and motor impulsivity correlated negatively with the left superior temporal gyrus, while non-planning impulsivity correlated positively with the left OFC and lateral frontopolar cortex. Follow-up analyses revealed convergence in correlation patterns from patients to controls, but not vice versa. That pattern suggested broader neural representation of the trait in the healthy controls, who were less impulsive than the psychiatric patients.


Sujet(s)
Encéphale/anatomopathologie , Comportement impulsif/anatomopathologie , Comportement impulsif/psychologie , Adulte , Cervelet/anatomopathologie , Cortex cérébral/anatomopathologie , Interprétation statistique de données , Femelle , Latéralité fonctionnelle/physiologie , Humains , Traitement d'image par ordinateur , Imagerie par résonance magnétique , Mâle , Cortex préfrontal/anatomopathologie
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