6 Clinical Trials for Various Conditions
We are conducting a proof-of-concept trial to study the impact of HRV-biofeedback, a mind-body technique designed to improve stress resilience, on the quality of life, mood, and clinical skin severity of patients with psoriasis.
The proposed R21 project will attempt to further develop a novel intervention for posttraumatic stress symptoms inspired by the science of memory reconsolidation. Work in normal humans has shown that when a stable, consolidated memory is reactivated (i.e., retrieved) under appropriate conditions, it reverts to an unstable state, a process referred to herein as deconsolidation. In such a state, the memory is susceptible to the action of various "amnestic" agents that may inhibit its reconsolidation, thereby weakening it. The β-adrenergic blocker propranolol (PPNL) possesses such amnestic properties. More recent research has found that in order to initiate deconsolidation, there must be a prediction error, or mismatch, between what is expected and what occurs when the memory is reactivated. Prior placebo-controlled, randomized clinical trials (PBO-RCT) from our laboratory have found that when propranolol is administered concomitant with the reactivation of a psychologically traumatic memory, the memory is weakened, as revealed by subsequent lower physiological (heart rate, skin conductance, facial electromyogram) responding during script-driven mental imagery. Clinical applicability was evaluated in a PBO-RCT, in which PTSD participants receiving propranolol underwent six weekly sessions of 10-20 min of "standard" (STD) traumatic memory reactivation stimulated by reading a narrative. At post-treatment, these participants showed a greater reduction of PTSD symptoms compared to participants who had taken PBO. The goal of the proposed study is to test whether intentionally incorporating innovative mismatch (MM) into traumatic memory reactivation can improve upon physiological responding during script-driven mental imagery. Participants will be randomized to one of 2 treatment arms: STD/PPNL and MM/PPNL. A baseline assessment will measure psychophysiological responsivity to script-driven mental imagery (target measure). PPNL will be administered 90-min prior to each of six weekly 10-20 min. traumatic memory reactivation sessions. In the MM condition, a different, unexpected mismatch (e.g., singing the narrative) will be incorporated into the reactivation. In the STD condition, the participant will read the narrative the same way each time. The focus of the R21 proposal will be to assess whether the MM/PPNL group shows lower subsequent physiological responses than the STD/PPNL group
The overarching goal of this study is to characterize the acute cognitive and psychophysiological effects of the main psychoactive constituent of cannabis, 9-delta-tetrahydrocannabinol (THC) in individuals with euthymic bipolar disorder (BD), and to begin probing the mechanisms that may underlie its effects in this illness. This study is expected to contribute to a better characterization of specific effects of THC in individuals with BD compared to healthy controls (HC).
The aim of this study is to pilot test a comprehensive, personalized, media-augmented telehealth intervention ("SWISH") designed to improve sleep health among shift workers.
The purpose of our study is to examine the effects of a 4-week vinyasa yoga program on sleep-related and cardiovascular outcomes in adults with insomnia symptoms. This study will examine the following aims: To examine the effects of a 4-week vinyasa yoga program compared to a non-active control condition on subjective and objective sleep-related outcomes in adults who report insomnia symptoms. To examine the effects of a 4-week vinyasa yoga program compared to a non-active control on cardiovascular health. To examine the effects of a single session of vinyasa yoga compared to a non-active control condition on sleep- and cardiovascular-related outcomes collected overnight. Researchers will compare the yoga group and the non-active control group to see if there are any improvements in sleep and cardiovascular health.
Military operations and training situations present many physical and psychological challenges for service members to adapt to and overcome. The challenges of these changing conditions necessitate having to cope with stress, which is seen as the negative perceptions, feelings, and emotions that manifest from the subjective physical and/or mental strain on life processes. In addition, service members are returning from deployments having gone through traumatic experiences that can develop into posttraumatic stress disorder (PTSD), depression or other serious conditions. The Surface Warfare Independent Duty Corpsman (IDC) School is an example of a training environment where some students may be entering the program with symptoms of PTSD, which may preclude or make it more difficult for them to perform well. Autonomic nervous system (ANS) dysregulation has been observed in patients with PTSD and those experiencing chronic stress, such that there is more arousing, sympathetic input to the heart than calming, parasympathetic input, which is usually the dominant division of the ANS involved in controlling one's heart rate. The IDC training program is an example of an environment where the service member is expected to excel while being subjected to multiple sources of stress. The fast tempo coupled with performance expectations may induce stress and actually inhibit learning. The Institute of HeartMath has developed the Coherence Advantage program which teaches one to self-regulate their emotions while focusing on breathing to compliment the active process of self-regulation. In conjunction, the emWave Personal Stress Reliever allows the user to receive heart rate variability (HRV) biofeedback, hence giving the user the opportunity to self-regulate their ANS through breathing and self-regulation techniques. The proposed study will test the effectiveness of the Coherence Advantage program versus progressive muscle relaxation (PMR) in reducing stress symptomatology among Surface Warfare IDC students. The effectiveness of these two different interventions will be compared on outcomes of PTSD, depression, anxiety, sleep quality, perceived stress, attrition, and class performance.