View clinical trials related to Stress Disorders, Post-Traumatic.
Filter by:The purpose of this study is to determine whether deep brain stimulation of the basolateral nucleus (BLn) of the amygdala, on both sides of the brain, can safely reduce symptoms of post-traumatic stress disorder (PTSD) in combat veterans whose condition has not improved despite extensive treatment with currently available medication and psychotherapy interventions.
PTSD affects a wide variety of symptoms, some of which have been shown to disrupt family relationships. This study will examine some of the effects on parenting, from the perspective of the parent with PTSD.
This study will evaluate the impact of a psychosocial intervention, Coping Coach, delivered online to children who have experience an acute medical event. The core study hypotheses are that children receiving the intervention will (1) endorse fewer maladaptive trauma-related appraisals and (2) demonstrate more adaptive coping (more support-seeking, more cognitive restructuring, less avoidant coping) at a 6-week follow-up, and (3) demonstrate lower severity of post traumatic stress (PTS) symptoms and higher health related quality of life (HRQOL) at 12 week follow-up.
This study plans to examine if symptoms of PTSD affect how Veterans who have served in combat think and react to certain information, and whether or not this has an influence on suicidal thoughts.
This is an observational study designed to determine whether veterans with PTSD have a higher risk of heart disease than those without PTSD. Cardiovascular risk will be assessed by interview and review of medical records, carotid artery ultrasound, and blood tests measuring markers of inflammation. Study participation is approximately 6 months. The eligible study population is veterans of Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF), age 28 through 38 years.
This effectiveness study is being conducted to determine whether Trauma-Focused Cognitive Therapy (TF-CBT), a treatment model developed in specialty clinics by experts in the treatment of child sexual abuse, can be effectively transported to a state-contracted community mental health agency in the state of Delaware and used effectively by clinicians with little prior TF-CBT experience. The sample is comprised of youths receiving public mental health services and with diverse trauma histories.
The purpose of this pilot study is to determine the effects of computer-based training in executive functioning compared to word games on cognitive and emotional aspects of combat-related PTSD.
HIV continues to spread among Black men who have sex with men (MSM), but few interventions target high-risk Black men who have sex with men and women (MSMW). Black MSMW with histories of childhood sexual abuse (CSA) may be an especially vulnerable population for: a) high-risk sexual behaviors; b) negative psychological sequelae (e.g., depressive or posttraumatic stress disorder (PTSD) symptoms); and c) neurobiological abnormalities in cardiovascular, neuroendocrine and/or immune systems (e.g., cortisol and norepinephrine), and HIV/AIDS progression. The purpose of this study was to test an HIV risk reduction intervention, guided by the Social Learning Theory, the Ecological Model, and the concept of allostatic load, a composite of the cumulative effects of stress on biological systems including psychoneuroimmunologic markers. The investigators tested the 6-session Enhanced Sexual Health Intervention for Men (ES-HIM) on 88 non-gay identifying HIV-positive Black MSMW with histories of CSA. The outcomes were to reduce high-risk sexual behaviors (i.e., unprotected anal and vaginal sex and number of sex partners) and negative psychological symptoms of depression and PTSD. Links between these outcomes and biomarkers of stress were also explored. Randomization to either the ES-HIM or a health promotion control group occurred with study participants assessed at baseline, post, 3- and 6-months.
This study looks at the biological effect of domestic violence and abuse (DVA) on women's mental health. The mechanisms through which DVA causes mental disorders are very poorly understood. Similar to other demands, DVA activates the biological stress system, of which the chief component is the hypothalamic-pituitary-adrenal (HPA) axis, which produces chemical cortisol. Cortisol levels increase in response to short-term demand and help organisms deal with it by changing the processes of getting energy from food and also mental function. However constant activation of the HPA axis can cause damage and accelerate disease. This study tests the hypothesis that compared to non-abused women all abuse victims have altered diurnal rhythm in cortisol secretion and that the pattern of this alteration is predicted by abuse characteristics, such as its type, severity, duration, and cessation. To examine the hypothesis the following research questions will be addressed: 1) whether cortisol levels are related to mental health state; 2) whether cortisol levels are related to type, severity, duration and cessation of DVA; 3) whether there is any difference in cortisol concentrations between those women exposed to both childhood abuse and DVA and those who have experienced only the latter; 4) whether cortisol levels vary between women, living in refuge and those not living in refuge? To answer these research questions 214 women will be recruited in a domestic violence agency. Baseline and 3-monthly follow-up measures will be taken over 6 months after recruitment. Women will be asked to fill in a questionnaire to evaluate their demographics, health, experience of childhood abuse and DVA. Women's weight and height will be taken. In addition participants will be asked to take three saliva samples: 1st in the evening in bed, 2nd - next morning immediately upon awakening, and the 3rd - in thirty minutes after awakening. Saliva will be collected by chewing (for 2 minutes) the cotton pledget provided with plastic tube and returned by post or via collection by the researcher. Then the saliva samples will be tested for cortisol and cortisone. Results of the study will increase our understanding of the biological mechanisms of DVA impact on a woman's health and tell researchers and practitioners about the possibility of using cortisol as an indicator to diagnose abuse-related health problems and assess effectiveness of medical care for abuse survivors.
The aim of this project is to create fear conditioning paradigm within which the relative strengths of various novel pharmacological and behavioral interventions can be tested. These interventions are intended to reduce the fearfulness associated with fear conditioning by blocking a memory process known as reconsolidation. In fear conditioning, a "conditioned" stimulus (CS) is paired with an aversive "unconditioned" stimulus (US) such as an electric shock, until presentation of the CS alone comes to elicit a fear conditioned response (CR). The investigators hypothesize that by using a more highly prepared CS (i.e. video of spiders); more sensitive subjects (individuals with stronger acquired CRs); and additional experimental probes for the presence of the latent CR, the investigators may develop a normal human paradigm that is not plagued by previously observed floor effects (i.e. intervention is 100% effective), within which both the established techniques of propranolol and delayed extinction will produce significant, but only partial, CR reduction. This would leave room to test and compare potentially more powerful candidate reconsolidation-blocking or memory-updating interventions. To achieve these aims, subjects will undergo a four-day fear conditioning and delayed extinction protocol. Skin conductance response data will be gathered across the different phases of the experiment.