The purpose of this research study is to identify brain activation patterns in response to deep brain stimulation (DBS). To participate in this study, participants are required to have had a DBS implant. Participants will undergo screening, a motor assessment session and a 30-minute Magnetic Resonance Imaging (MRI) session where their DBS device will be turned on and off in a cycled pattern. This study will be separated over 3 visits (Visit 1 for screening, Visit 2 for motor assessments and Visit 3 for the MRI scan). The total study duration will be approximately 3 hours.
Newborns who are born premature or suffer brain injury at birth are at risk for motor problems that may cause weakness in reaching and grasping on one side of the body. In older children, therapists may use a hand mitt and restraint for the stronger arm, to encourage use of the weaker side, called constraint-induced movement therapy (CIMT). Even with the high intensity therapy of CIMT, it typically takes between 40-120 hours total treatment time for most children to improve their motor skills. A non-invasive form of nerve stimulation, transcutaneous auricular vagus nerve stimulation (taVNS), stimulates a nerve by the ear that enhances learning motor skills. The purpose of this study is to evaluate the safety and effectiveness of taVNS to improve motor skills when paired with CIMT in infants with one-sided weakness at 6-18months of age.
Hand and arm disability after stroke has a profound, negative impact on functional ability and independence. Basic science research suggests that recovery requires high repetitions of task-specific practice. Enough practice cannot be completed during therapy sessions, requiring patients to perform additional task practices at home on their own. Adherence to these home task practices is often limited and is likely a factor reducing the effectiveness of rehabilitation post-stroke. This project will create a system to objectively track stroke survivors' hand and arm task practice at home. The quantity and quality feedback from the system is expected to optimize effective task practice at home by patients. The system is expected to also enable adherence- and progress-driven clinic visits to maximize efficiency of therapy service.
This is a Phase 3, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, and tolerability of valbenazine in subjects with Huntington's Disease (HD). The study includes a 4-week screening period, an 8-week dose-adjustment period, a 4-week maintenance period, and a final study visit 2 weeks following the final dose of study drug. Approximately 120 adult male and female subjects with motor manifest HD (a type of HD that causes uncontrolled movements and balance issues) and a genetic diagnosis of HD will be enrolled.
Study drug will be self-administered (in the presence of the subject's caregiver, if applicable) once daily (qd), preferably in the morning but before 1800 hours, beginning on Day 1. Study drug should be administered at approximately the same time each day during the study. Valbenazine will be supplied as orally administered capsules containing 20 or 40 mg of valbenazine. Subjects must swallow the capsules with approximately 4 ounces of water or other liquid, with or without food.
The purpose of the first portion of this study is to gather feedback from clinicians on the usability of the current system and procedure, so the researchers can make reflex training more useful and usable for improving recovery after spinal cord injury or other nervous system injuries and diseases. The researchers are recruiting 20 therapists who have been actively practicing physical medicine and 30 adults with no known neurological conditions to test system usability and the reflex operant conditioning protocol. For this portion of the study, there are 5 visits.
The purpose of the second part of the study is to validate the capacity of the system to change the size of the targeted reflex. For this the researchers are recruiting 25 individuals with chronic incomplete SCI who have spasticity in the leg to participate in the reflex training procedure. The study involves approximately 45 visits with a total study duration of about 6 months.
Hand disability after stroke has a profound negative impact on functional ability and independence. Hand therapy may be augmented with sensory stimulation for better outcomes. We have developed a novel sensory stimulation - unfelt vibration applied via a wristwatch. In this study, we will determine if combining this stimulation with hand task practice is superior to hand task practice alone.
Walking after a lower extremity amputation is often difficult. It is important that researchers and clinicians understand the mechanisms that inhibit normal walking function. In this study, we are recruiting individuals with lower extremity limb loss for a walking and balance investigation. We will also be studying matched healthy controls to do similar study procedures. All study procedures will occur on the campus of MUSC by a licensed Physical Therapist and experienced researcher. Any questions should be directed to the coordinator listed.
Transcranial direct current stimulation (tDCS) has shown the potential to improve symptoms in patients with motor deficits, however its effects have not been consistent in randomized studies to date, limiting widespread adoption of this technology. A critical gap in our knowledge is a detailed understanding of how tDCS affects motor areas in the brain. We propose using tDCS while recording directly from motor cortex using subdural electrocorticography (sECoG) in patients undergoing deep brain stimulation surgery. We expect this novel approach to broaden our understanding of tDCS application and possibly lead to therapeutic advances in this population.
The primary objective of Enroll-HD is to develop a comprehensive repository of prospective and systematically collected clinical research data (demography, clinical features, family history, genetic characteristics) and biological specimens (blood) from individuals with manifest HD, unaffected individuals known to carry the HD mutation or at risk of carrying the HD mutation, and control research participants (e.g., spouses, siblings or offspring of HD mutation carriers known not to carry the HD mutation). Enroll-HD is conceived as a broad-based and long-term project to maximize the efficiencies of non-clinical research and participation in clinical research while ensuring privacy and protections for consenting research participants.
Over many years, we have learnt that the brain's connections with the spinal cord change in response to injury or training. Because brain-spinal cord (i.e., corticospinal) pathways are very important in movement control, restoring function of these pathways could help to restore useful movement after spinal cord injury (SCI). In this project, we hypothesize that operant conditioning training of the muscle response to non-invasive transcranial magnetic stimulation can strengthen the functional connectivity of corticospinal pathways and thereby alleviate movement problems in people with chronic incomplete SCI. Specifically, through this project, we will investigate the effects of strengthening the corticospinal connection to the ankle dorsiflexor muscles through operant up-conditioning of the muscle evoked response, in hope to enhance the function of corticospinal pathways and alleviate foot drop (i.e., weak ankle dorsiflexion resulting in toe drop and drag) during walking in people with chronic incomplete SCI.