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1.
Contemp Clin Trials ; 135: 107363, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37884120

RESUMO

BACKGROUND: Many patients with advanced cancer describe pain as a debilitating symptom that greatly interferes with daily activities and enjoyment of life. Psychosocial interventions can improve cancer-related pain but rarely address spiritual concerns (e.g., loss of meaning, peace), which can influence the pain experience for those facing life-threatening illness. To address these needs, we systematically developed and pilot tested a novel psychosocial intervention called Meaning-Centered Pain Coping Skills Training (MCPC). In this randomized controlled trial, we aim to determine MCPC's efficacy for reducing pain interference (primary outcome) and improving secondary outcomes. We will also estimate MCPC's cost-effectiveness. METHOD/DESIGN: Patients (target N = 210) with advanced solid tumor malignancies (Stage IV) and clinically-elevated pain interference will be enrolled and block randomized with equal allocation to MCPC + enhanced usual care or enhanced usual care alone. MCPC's four, videoconferenced, 45-60 min weekly sessions will be individually delivered by trained study therapists. Primary (pain interference) and secondary (pain severity, anxiety and depressive symptoms, pain self-efficacy, social support, spiritual well-being) patient-reported outcomes will be assessed at baseline, and 8-weeks (primary endpoint) and 12-weeks after baseline. CONCLUSION: Our MCPC intervention is the first to systematically address the biopsychosocial-spiritual aspects of pain in patients with advanced cancer. If MCPC demonstrates efficacy, next steps will involve hybrid efficacy-effectiveness and implementation work to broaden access to this brief, manualized, remotely-delivered intervention, with the goal of reducing suffering in patients with life-threatening illness.


Assuntos
Neoplasias , Qualidade de Vida , Humanos , Neoplasias/complicações , Neoplasias/terapia , Neoplasias/patologia , Dor , Ansiedade/etiologia , Ansiedade/terapia , Adaptação Psicológica , Ensaios Clínicos Controlados Aleatórios como Assunto
2.
Pain ; 164(9): 1935-1941, 2023 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-37079854

RESUMO

ABSTRACT: Behavioral pain management interventions are efficacious for reducing pain in patients with cancer. However, optimal dosing of behavioral pain interventions for pain reduction is unknown, and this hinders routine clinical use. A Sequential Multiple Assignment Randomized Trial (SMART) was used to evaluate whether varying doses of Pain Coping Skills Training (PCST) and response-based dose adaptation can improve pain management in women with breast cancer. Participants (N = 327) had stage I-IIIC breast cancer and a worst pain score of > 5/10. Pain severity (a priori primary outcome) was assessed before initial randomization (1:1 allocation) to PCST-Full (5 sessions) or PCST-Brief (1 session) and 5 to 8 weeks later. Responders ( > 30% pain reduction) were rerandomized to a maintenance dose or no dose and nonresponders (<30% pain reduction) to an increased or maintenance dose. Pain severity was assessed again 5 to 8 weeks later (assessment 3) and 6 months later (assessment 4). As hypothesized, PCST-Full resulted in greater mean percent pain reduction than PCST-Brief (M [SD] = -28.5% [39.6%] vs M [SD]= -14.8% [71.8%]; P = 0.041). At assessment 3 after second dosing, all intervention sequences evidenced pain reduction from assessment 1 with no differences between sequences. At assessment 4, all sequences evidenced pain reduction from assessment 1 with differences between sequences ( P = 0.027). Participants initially receiving PCST-Full had greater pain reduction at assessment 4 ( P = 0.056). Varying PCST doses led to pain reduction over time. Intervention sequences demonstrating the most durable decreases in pain reduction included PCST-Full. Pain Coping Skills Training with intervention adjustment based on response can produce sustainable pain reduction.


Assuntos
Neoplasias da Mama , Dor do Câncer , Humanos , Feminino , Dor do Câncer/tratamento farmacológico , Adaptação Psicológica , Terapia Comportamental/métodos , Dor
3.
J Psychosoc Oncol ; 41(1): 87-103, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35311481

RESUMO

PURPOSE: This study evaluated the relationship between pain and depressive symptoms through pain self-efficacy and pain catastrophizing in breast cancer patients with pain. DESIGN: Secondary analysis of a randomized trial investigating a cognitive-behavioral pain management protocol. SAMPLE: Females (N = 327) with stage I-III breast cancer and report of at least moderate pain. METHODS: Pain severity, pain self-efficacy, pain catastrophizing, and depressive symptoms were measured. The proposed model was assessed using structural equation modeling. RESULTS: Higher pain severity was significantly related to lower pain self-efficacy and higher pain catastrophizing. Lower pain self-efficacy and higher pain catastrophizing were significantly related to more depressive symptoms. Higher pain severity was significantly associated with more depressive symptoms through lower pain self-efficacy and higher pain catastrophizing. The association between pain severity and depressive symptoms was not significant when specified as a direct effect. CONCLUSION: Pain severity related to depressive symptoms in breast cancer patients via pain self-efficacy and pain catastrophizing. IMPLICATIONS FOR PSYCHOSOCIAL PROVIDERS: Measurement of pain self-efficacy and pain catastrophizing should be incorporated into comprehensive pain assessments for women with breast cancer, as these variables may be relevant therapeutic targets. Psychosocial symptom management interventions should include strategies that increase pain self-efficacy and decrease pain catastrophizing because these pain-related cognitive variables appear to drive the relationship between pain severity and depressive symptoms.


Assuntos
Neoplasias da Mama , Depressão , Dor , Feminino , Humanos , Neoplasias da Mama/terapia , Neoplasias da Mama/complicações , Catastrofização/psicologia , Depressão/epidemiologia , Dor/etiologia , Dor/psicologia , Manejo da Dor/psicologia , Medição da Dor , Autoeficácia
4.
Support Care Cancer ; 30(8): 6633-6640, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35501516

RESUMO

PURPOSE: African-American women with breast cancer face significant disparities, including high levels of pain. Depressive symptoms and self-efficacy for pain management impact how women with breast cancer manage pain, yet little is known about how these variables relate to pain specifically for African-American women with breast cancer. METHODS: Baseline linear regression analyses were conducted using a sample of women (n = 98) with stage I-III breast cancer identifying as Black or African-American who were part of a larger intervention trial. Linear regressions explored the effect of depressive symptoms on pain (i.e., severity and interference), and the effect of self-efficacy for pain management on pain. Covariates were age (M = 57.22, SD = 10.76), cancer stage (50% = stage 1), and education level (36% = some college). RESULTS: Participants reported moderate levels of pain severity and interference. Higher depressive symptoms were related to both higher pain severity and interference; (B = 0.06, p < 0.01, 95% CI [0.02,0.09]) and (B = 0.13, p < 0.001, 95% CI [0.09, 0.17]) respectively. Likewise, lower self-efficacy for pain management was also related to both higher pain severity and interference; (B = - 0.04, p < 0.001, 95% CI [- 0.05, - 0.02]) and (B = - 0.06, p < 0.001, 95% CI [- 0.08, - 0.04]) respectively. Women reporting less than a high school diploma endorsed significantly higher pain severity and interference than women reporting some college. Age and cancer stage were not significantly related to pain. CONCLUSION: Pain for African-American women with breast cancer may be influenced by depressive symptoms and self-efficacy for pain management, in addition to other important variables. Attending to better assessment and treatment of depressive symptoms and self-efficacy for pain management may improve outcomes.


Assuntos
Negro ou Afro-Americano , Neoplasias da Mama , Neoplasias da Mama/complicações , Depressão/diagnóstico , Depressão/etiologia , Depressão/terapia , Feminino , Humanos , Dor/etiologia , Autoeficácia
5.
Contemp Clin Trials ; 110: 106569, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34536584

RESUMO

BACKGROUND/AIMS: Many cancer survivors who received intensive treatment such as hematopoietic stem cell transplantation (HCT) experience posttraumatic stress disorder (PTSD) symptoms. PTSD is associated with lower quality of life and other symptoms that require clinical treatment. The iterative treatment decisions that happen in clinical practice are not adequately represented in traditional randomized controlled trials (RCT) of PTSD treatments. The proposed stepped-care SMART design allows for evaluation of initial response to the Cancer Distress Coach mobile app; adaptive stepped-care interventions; and precision treatment strategies that tailor treatment selection to patient characteristics. METHODS/DESIGN: HCT survivors (N = 400) reporting PTSD symptoms are being recruited at two cancer centers and randomly assigned to: 1) Cancer Distress Coach app or 2) Usual Care. The app includes educational and cognitive behavioral therapy (CBT)-based activities. Four weeks post-randomization, participants re-rate their PTSD symptoms and, based on intervention response, non-responders are re-randomized to receive video-conferenced sessions with a therapist: 3) coaching sessions in using the mobile app; or 4) CBT specific to HCT survivors. Participants complete outcome measures of PTSD, depression, and anxiety after Months 1, 3, and 6. Participant characteristics moderating intervention responses will be examined. CONCLUSIONS: This novel adaptive trial design will afford evidence that furthers knowledge about optimizing PTSD interventions for HCT survivors. To our knowledge, this study is the first SMART design evaluating PTSD symptom management in cancer survivors. If successful, it could be used to optimize treatment among a range of cancer and other trauma survivors.


Assuntos
Sobreviventes de Câncer , Terapia Cognitivo-Comportamental , Neoplasias , Transtornos de Estresse Pós-Traumáticos , Telemedicina , Ansiedade , Humanos , Neoplasias/terapia , Transtornos de Estresse Pós-Traumáticos/terapia
6.
Support Care Cancer ; 29(9): 5513-5521, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33723675

RESUMO

PURPOSE: Fatigue and pain are common among women with breast cancer, and often related to depressive symptoms. Social support may influence levels of fatigue, pain interference, and depressive symptoms. We tested a theory-based, structural model examining the relationship between social support (i.e., emotional and instrumental) and depressive symptoms via fatigue and pain interference in women with breast cancer. METHODS: Women (N = 327) with stages I-III breast cancer were enrolled in a randomized trial investigating a behavioral pain intervention. Measures of social support, fatigue, pain interference, and depressive symptoms were completed at enrollment. Data were analyzed using structural equation modeling to test direct and indirect pathways relating social support, fatigue, pain interference, and depressive symptoms. RESULTS: Our model evidenced good fit. Significant direct effects emerged linking higher levels of emotional support with lower levels of fatigue (ß = -.30), pain interference (ß = -.32), and depressive symptoms (ß = -.31). More instrumental support was significantly associated with more depressive symptoms (ß = .11), but not fatigue or pain interference. Higher levels of fatigue (ß = .30) and pain interference (ß = .34) were significantly related to higher levels of depressive symptoms. More emotional support related to less depressive symptoms via lower levels of fatigue (ß = -.09) and pain interference (ß = -.11). CONCLUSION: Women reporting higher levels of emotional support endorsed fewer depressive symptoms, and that relationship was driven by lower levels of fatigue and pain interference. Our results highlight novel pathways that healthcare professionals can leverage to optimize social support topics in psychosocial interventions targeting breast cancer symptoms. This model should be replicated using longitudinal data.


Assuntos
Neoplasias da Mama , Neoplasias da Mama/complicações , Depressão/epidemiologia , Depressão/etiologia , Fadiga/epidemiologia , Fadiga/etiologia , Feminino , Humanos , Dor/epidemiologia , Dor/etiologia , Apoio Social
7.
Contemp Clin Trials ; 102: 106287, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33497833

RESUMO

BACKGROUND: Women with breast cancer in medically underserved areas are particularly vulnerable to persistent pain and disability. Behavioral pain interventions reduce pain and improve outcomes. Cancer patients in medically underserved areas receive limited adjunctive cancer care, as many lack access to pain therapists trained in behavioral interventions, face travel barriers to regional medical centers, and may have low literacy and limited resources. mHealth technologies have the potential to decrease barriers but must be carefully adapted for, and efficacy-tested with, medically underserved patients. We developed an mHealth behavioral pain coping skills training intervention (mPCST-Community). We now utilize a multisite randomized controlled trial to: 1) test the extent mPCST-Community reduces breast cancer patients' pain severity (primary outcome), pain interference, fatigue, physical disability, and psychological distress; 2) examine potential mediators of intervention effects; and 3) evaluate the intervention's cost and cost-effectiveness. METHODS/DESIGN: Breast cancer patients (N = 180) will be randomized to mPCST-Community or an attention control. mPCST-Community's four-session protocol will be delivered via videoconferencing at an underserved community clinic by a remote pain therapist at a major medical center. Videoconference sessions will be supplemented with a mobile application. Participants will complete self-report measures at baseline, post-intervention, and 3- and 6-month follow-ups. CONCLUSIONS: mPCST-Community has the potential to reduce pain and disability, and decrease barriers for cancer patients in medically underserved areas. This is one of the first trials to test an mHealth behavioral cancer pain intervention developed specifically for medically underserved communities. If successful, it could lead to widespread implementation and decreased health disparities.


Assuntos
Neoplasias da Mama , Dor do Câncer , Aplicativos Móveis , Adaptação Psicológica , Neoplasias da Mama/complicações , Neoplasias da Mama/terapia , Feminino , Humanos , Área Carente de Assistência Médica , Estudos Prospectivos , Comunicação por Videoconferência
8.
Cancer Med ; 9(9): 3202-3210, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32129946

RESUMO

This Longitudinal patient navigation Matrix Model was developed to overcome barriers across the cancer care continuum by offering prepatients, patients, and their families with support services. The extraordinary heterogeneity of patient needs during cancer screening, risk assessment, treatment, and survivorship as well as the vast heterogeneity of oncology care settings make it nearly impossible to follow a static navigation model. Our model of patient cancer navigation is unique as it enhances the traditional model by being highly adaptable based on both patient and family needs and scalable based on institutional needs and resources (eg, clinical volumes, financial resources, and community-based resources). This relatively new operational model for system-wide and systematic navigation incorporates a carefully cultivated supportive care program that evolved over the last decade from a bottom up approach that identified patient and family needs and developed appropriate resources. A core component of this model includes shifting away from department-centric operations. This model does not require a patient to opt in or independently be able to report their needs or ask for services-it is an opt out model. The multidisciplinary "cross-training" model can also facilitate reimbursement and sustainability by clarifying the differentiating actions that define navigation services: identification of barriers to quality care and specific actions taken to overcome those barriers, across the full continue of cancer care from community engagement to survivorship or end-of-life care.


Assuntos
Continuidade da Assistência ao Paciente/organização & administração , Comunicação Interdisciplinar , Modelos Estatísticos , Neoplasias/terapia , Navegação de Pacientes/métodos , Qualidade da Assistência à Saúde , Humanos
9.
Psychooncology ; 28(6): 1293-1300, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30946499

RESUMO

OBJECTIVES: Research has demonstrated that serving in the caregiver role is often associated with increased symptoms of depression, stress, and anxiety, but some people fare better than others in managing the burden of caregiving. The goal of the present study was to examine the potential moderating role of goal adjustment (the ability to disengage from unattainable goals and reengage in alterative ones) on the relation between caregiver burden and distress in family caregivers of cancer patients. METHODS: Caregivers of adult family members diagnosed with cancer in the past 3 years participated (N = 102). Participants were consented and completed online questionnaires on psychological distress, caregiver burden, and goal adjustment. RESULTS: The ability to disengage from unattainable goals was associated with lower anxiety and stress in the face of increasing caregiver burden. By contrast, the ability to reengage in alternative goals was associated with lower depression as burden increased. CONCLUSIONS: The present study suggests that goal adjustment may play an important moderating role in the relationship between caregiver burden and distress. Caregivers who are better able to disengage from unattainable goals may experience less stress and anxiety, and caregivers who are better able to reengage in alternative goals experience less depressed mood. This study provides preliminary evidence that learning different ways to approach and adjust goals may reduce depression, anxiety, and stress in family caregivers.


Assuntos
Adaptação Psicológica , Cuidadores/psicologia , Efeitos Psicossociais da Doença , Família/psicologia , Objetivos , Neoplasias/enfermagem , Angústia Psicológica , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Psicológico/psicologia
10.
Cognit Ther Res ; 41(2): 266-277, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28579660

RESUMO

Experience sampling methodology (ESM) was used in a randomized controlled trial of short-term therapy to examine changes in daily affect and reactivity to daily event appraisals among depressed patients. Fifty-five depressed adults (mean age 37 years, 80% female) were randomly assigned to one of two therapy conditions. Using an interactive voice response system, participants rated activities and emotional functioning eight times per day for seven days. Thirty-one participants completed treatment and repeated ESM post-treatment. Broad improvements in mood, cognition, and physical functioning were similar across treatment conditions, with the largest improvements for markers of positive affect. Participants demonstrated increased resilience, i.e., diminished reactivity to stressors at post-treatment. Changes in reactivity to positive daily situations were minimal. Findings underscore the utility of ESM in psychotherapy research and the importance of including measures of both positive and negative affect and experiences.

11.
Contemp Clin Trials ; 57: 51-57, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28408335

RESUMO

BACKGROUND/AIMS: Pain is common in cancer patients and results in lower quality of life, depression, poor physical functioning, financial difficulty, and decreased survival time. Behavioral pain interventions are effective and nonpharmacologic. Traditional randomized controlled trials (RCT) test interventions of fixed time and dose, which poorly represent successive treatment decisions in clinical practice. We utilize a novel approach to conduct a RCT, the sequential multiple assignment randomized trial (SMART) design, to provide comparative evidence of: 1) response to differing initial doses of a pain coping skills training (PCST) intervention and 2) intervention dose sequences adjusted based on patient response. We also examine: 3) participant characteristics moderating intervention responses and 4) cost-effectiveness and practicality. METHODS/DESIGN: Breast cancer patients (N=327) having pain (ratings≥5) are recruited and randomly assigned to: 1) PCST-Full or 2) PCST-Brief. PCST-Full consists of 5 PCST sessions. PCST-Brief consists of one 60-min PCST session. Five weeks post-randomization, participants re-rate their pain and are re-randomized, based on intervention response, to receive additional PCST sessions, maintenance calls, or no further intervention. Participants complete measures of pain intensity, interference and catastrophizing. CONCLUSIONS: Novel RCT designs may provide information that can be used to optimize behavioral pain interventions to be adaptive, better meet patients' needs, reduce barriers, and match with clinical practice. This is one of the first trials to use a novel design to evaluate symptom management in cancer patients and in chronic illness; if successful, it could serve as a model for future work with a wide range of chronic illnesses.


Assuntos
Neoplasias da Mama/terapia , Terapia Cognitivo-Comportamental/métodos , Manejo da Dor/métodos , Adaptação Psicológica , Adulto , Neoplasias da Mama/complicações , Terapia Cognitivo-Comportamental/economia , Análise Custo-Benefício , Feminino , Humanos , Manejo da Dor/economia , Medição da Dor
12.
J Soc Clin Psychol ; 35(8): 629-642, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29887670

RESUMO

More optimistic expectations for change in patients entering treatment often predict more favorable outcomes. However, our understanding of the nature and function of those expectancies is limited. The current study tested the proposal that optimistic expectancies among patients seeking outpatient psychotherapy for major depressive disorder may be explained in part by having a more adaptive self-regulatory style. A sample of 56 adults (78.6% female; mean age 36.5) completed measures of expectancies, depressive symptoms, and aspects of self-regulation. Participants also completed a week of experience sampling using a cell phone system that signaled them 8 random times per day for 7 days. Results were largely consistent with hypotheses. Depressed participants with more optimistic expectancies had a stronger promotion goal orientation, higher goal re-engagement, and reported greater progress on their most important personal goals; daily positive affect and positive situational appraisals were also higher. Findings may suggest a possible self-regulatory mechanism underlying optimistic expectancies for change.

13.
J Am Acad Child Adolesc Psychiatry ; 53(5): 579-88.e9, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24745957

RESUMO

OBJECTIVE: Youth with disruptive behavior disorders (DBD), including conduct disorder (CD) and oppositional defiant disorder (ODD), have difficulties in reinforcement-based decision making, the neural basis of which is poorly understood. Studies examining decision making in youth with DBD have revealed reduced reward responses within the ventromedial prefrontal cortex/orbitofrontal cortex (vmPFC/OFC), increased responses to unexpected punishment within the vmPFC and striatum, and reduced use of expected value information in the anterior insula cortex and dorsal anterior cingulate cortex during the avoidance of suboptimal choices. Previous work has used only monetary reinforcement. The current study examined whether dysfunction in youth with DBD during decision making extended to environmental reinforcers. METHOD: A total of 30 youth (15 healthy youth and 15 youth with DBD) completed a novel reinforcement-learning paradigm using environmental reinforcers (physical threat images, e.g., striking snake image; contamination threat images, e.g., rotting food; appetitive images, e.g., puppies) while undergoing functional magnetic resonance imaging (fMRI). RESULTS: Behaviorally, healthy youth were significantly more likely to avoid physical threat, but not contamination threat, stimuli than youth with DBD. Imaging results revealed that youth with DBD showed significantly reduced use of expected value information in the bilateral caudate, thalamus, and posterior cingulate cortex during the avoidance of suboptimal responses. CONCLUSIONS: The current data suggest that youth with DBD show deficits to environmental reinforcers similar to the deficits seen to monetary reinforcers. Importantly, this deficit was unrelated to callous-unemotional (CU) traits, suggesting that caudate impairment may be a common deficit across youth with DBD.


Assuntos
Transtornos de Deficit da Atenção e do Comportamento Disruptivo/fisiopatologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/psicologia , Transtorno da Conduta/fisiopatologia , Transtorno da Conduta/psicologia , Imageamento por Ressonância Magnética , Reforço Psicológico , Enquadramento Psicológico , Meio Social , Adolescente , Nível de Alerta/fisiologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/diagnóstico , Encéfalo/fisiopatologia , Núcleo Caudado/fisiopatologia , Criança , Transtorno da Conduta/diagnóstico , Tomada de Decisões/fisiologia , Dominância Cerebral/fisiologia , Feminino , Humanos , Masculino , Rede Nervosa/fisiopatologia
14.
Psychiatry Res ; 202(3): 239-44, 2012 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-22819939

RESUMO

Youths with conduct disorder or oppositional defiant disorder and psychopathic traits (CD/ODD+PT) are at high risk of adult antisocial behavior and psychopathy. Neuroimaging studies demonstrate functional abnormalities in orbitofrontal cortex and the amygdala in both youths and adults with psychopathic traits. Diffusion tensor imaging in psychopathic adults demonstrates disrupted structural connectivity between these regions (uncinate fasiculus). The current study examined whether functional neural abnormalities present in youths with CD/ODD+PT are associated with similar white matter abnormalities. Youths with CD/ODD+PT and comparison participants completed 3.0 T diffusion tensor scans and functional magnetic resonance imaging scans. Diffusion tensor imaging did not reveal disruption in structural connections within the uncinate fasiculus or other white matter tracts in youths with CD/ODD+PT, despite the demonstration of disrupted amygdala-prefrontal functional connectivity in these youths. These results suggest that disrupted amygdala-frontal white matter connectivity as measured by fractional anisotropy is less sensitive than imaging measurements of functional perturbations in youths with psychopathic traits. If white matter tracts are intact in youths with this disorder, childhood may provide a critical window for intervention and treatment, before significant structural brain abnormalities solidify.


Assuntos
Transtornos de Deficit da Atenção e do Comportamento Disruptivo/patologia , Mapeamento Encefálico , Transtorno da Conduta/patologia , Sistema Límbico/patologia , Fibras Nervosas Mielinizadas/patologia , Adolescente , Análise de Variância , Anisotropia , Transtorno da Personalidade Antissocial/complicações , Transtorno da Personalidade Antissocial/patologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/complicações , Estudos de Casos e Controles , Criança , Transtorno da Conduta/complicações , Imagem de Tensor de Difusão , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Masculino , Escalas de Graduação Psiquiátrica
15.
Pers Individ Dif ; 53(3): 335-340, 2012 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-22736878

RESUMO

This study examined the moderating effects of motivational orientation on daily affect and goal pursuit. Based on recent revisions to Reinforcement Sensitivity Theory, measures of BIS (BIS-r and Fight-Flight-Freeze System or FFFS), BAS, and regulatory focus (Promotion and Prevention) were administered to 84 college students who participated in a 14-day diary study. Diary items assessed goal-directed activities and positive and negative affect (PA and NA). Results showed that higher FFFS and Promotion were consistently associated with higher NA and PA, respectively, and FFFS was also associated with avoidance of responsibilities. Higher Promotion predicted greater daily goal progress and tendencies to rate goals as more promotion- and prevention-focused. Relationships between daily goal-directed activities and both sadness and satisfaction were moderated by BIS-r. Inconsistent with our hypothesis, low BAS Reward Responsiveness predicted increased enthusiasm with greater goal progress. A trend in the data showed evidence of regulatory fit in daily activities predicted by both Promotion and Prevention. Implications for the theoretical and practical distinctions between measures of motivational orientation are discussed.

16.
Psychiatry Res ; 193(1): 38-45, 2011 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-21601433

RESUMO

Generalized social phobia (GSP) involves the fear of being negatively evaluated. Previous work suggests that self-referentiality, mediated by the medial prefrontal cortex (MFPC), plays an important role in the disorder. However, it is not clear whether this anomalous MPFC response to self-related information in patients with GSP concerns an increased representation of their own or others' opinions. In this article, we examine whether GSP is associated with increased response to own (1st person) or other individuals' (2nd person) opinions relative to healthy individuals. Unmedicated individuals with GSP (n=15) and age-, IQ-, and gender-matched comparison individuals (n=15) read 1st (e.g., I'm ugly), and 2nd (e.g., You're ugly) person viewpoint comments during functional magnetic resonance imaging. We observed significant group-by-viewpoint interactions within the ventral MPFC. Whereas the healthy comparison individuals showed significantly increased (or less decreased) BOLD responses to 1st relative to 2nd person viewpoints, the patients showed significantly increased responses to 2nd relative to 1st person viewpoints. The reduced BOLD responses to 1st person viewpoint comments shown by the patients correlated significantly with severity of social anxiety symptom severity. These results underscore the importance of dysfunctional self-referential processing and MPFC in GSP. We believe that these data reflect a reorganization of self-referential reasoning in the disorder with a self-concept perhaps atypically related to the view of others.


Assuntos
Lateralidade Funcional/fisiologia , Transtornos Fóbicos/patologia , Transtornos Fóbicos/psicologia , Córtex Pré-Frontal/fisiopatologia , Autoimagem , Adulto , Mapeamento Encefálico , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Processamento de Imagem Assistida por Computador/métodos , Imageamento por Ressonância Magnética/métodos , Masculino , Oxigênio/sangue , Córtex Pré-Frontal/irrigação sanguínea , Escalas de Graduação Psiquiátrica , Estatística como Assunto , Adulto Jovem
17.
Am J Psychiatry ; 167(12): 1526-32, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20889651

RESUMO

OBJECTIVE: Little is known about the neural underpinnings of generalized social phobia, which is defined by a persistent heightened fear of social disapproval. Using event-related functional MRI (fMRI), the authors examined whether the intent of an event, which mediates the neural response to social disapproval in healthy individuals, differentially affects response in generalized social phobia. METHOD: Sixteen patients with generalized social phobia and 16 healthy comparison subjects group-matched on age, gender, and IQ underwent fMRI scans while reading stories that involved neutral social events, unintentional social transgressions (e.g., choking on food at a party and coughing it up), or intentional social transgressions (e.g., disliking food at a party and spitting it out). RESULTS: Significant group-by-transgression interactions were observed in ventral regions of the medial prefrontal cortex. Healthy individuals tended to show increased blood-oxygen-level-dependent responses to intentional relative to unintentional transgressions. Patients with generalized social phobia, however, showed significantly increased responses to the unintentional transgressions. They also rated the unintentional transgressions as significantly more embarrassing than did the comparison subjects. Results also revealed significant group main effects in the amygdala and insula bilaterally, reflecting elevated generalized social phobia responses in these regions to all event types. CONCLUSIONS: These results further implicate the medial prefrontal cortex in the pathophysiology of generalized social phobia, specifically through its involvement in distorted self-referential processing. These results also further underscore the extended role of the amygdala and insula in the processing of social stimuli more generally in generalized social phobia.


Assuntos
Emoções/fisiologia , Lobo Frontal/fisiopatologia , Transtornos Fóbicos/fisiopatologia , Adulto , Tonsila do Cerebelo/fisiopatologia , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Autoimagem
18.
J Neurosci ; 30(17): 5825-9, 2010 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-20427643

RESUMO

There has been a long controversy concerning whether the amygdala's response to emotional stimuli is automatic or dependent on attentional load. Using magnoencephalography and an advanced beamformer source localization technique, we found that amygdala automaticity was a function of time: while early amygdala responding to emotional stimuli (40-140 ms) was unaffected by attentional load, later amygdala response (280-410 ms), subsequent to frontoparietal cortex activity, was modulated by attentional load.


Assuntos
Tonsila do Cerebelo/fisiologia , Atenção/fisiologia , Encéfalo/fisiologia , Emoções/fisiologia , Adulto , Feminino , Humanos , Magnetoencefalografia , Masculino , Vias Neurais/fisiologia , Testes Neuropsicológicos , Tempo de Reação , Processamento de Sinais Assistido por Computador , Fatores de Tempo , Percepção Visual/fisiologia , Adulto Jovem
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