This study aims to recruit patients already implanted with Deep Brain Stimulation (DBS) for movement disorders to complete tasks assessing parameters of motor output, speech, and swallowing functions, both with and without stimulation. DBS parameters would be adjusted prior to motor testing. Patients would then participate in multiple sessions performing contralateral upper extremity movement tasks measuring movement speed, grip strength, and strength modulation, facial movement, swallowing, and speech tasks.
The investigators hypothesize that multi-session anodal tDCS (atDCS) of the left dorsolateral prefrontal cortex (LDLPFC) will induce long-lasting effects in improving motor function and reducing motor fatigue and fatigability in PD patients.
The purpose of this study is to compare effects of weekly SQ semaglutide 2.4mg SQ, SQ tirzepatide 10mg, and placebo administered for 24 weeks on GES measured repeatedly at baseline, 16 weeks, 24 weeks, 28 weeks, 4 weeks after stopping the medication, and accommodation and satiation at 24 weeks compared to baseline.
The aim of this study is to evaluate how vibration of the tendons enhances arm and hand training in survivors of chronic stroke. The investigators hypothesize that wrist/elbow robotic training, combined with body awareness training will improve arm and hand function in individuals with chronic stroke.
The overall goal of this research project is to investigate the effectiveness and the science of peer-based prosthetic skill training in individuals with leg amputation. Our belief is that amputee learners will show improved skill learning when observing demonstrations from other amputees, as opposed to observing nonamputee models. The investigators will accomplish the objective by answering the following two questions: Question 1: Does peer-based observation training works better for learning motor tasks for individuals with lower limb amputation (LLA)? Question 2: Are there differences in visual focus, behavior, and brain activation patterns when observing motor task demonstrations from amputee peers vs. non-amputees? Participants of this study will be asked to learn a balance and a fall recovery task by observing video demonstrations by amputee peers vs. non-amputees. The investigators will compare which setting produce better learning.
The purpose of this study is to test if ublituximab changes walking functions and fall risk in people with relapsing multiple sclerosis (RMS). Twenty-five qualified people with RMS will undergo a 48-week ublituximab treatment. Before, 24 weeks into, and after the treatment, their ambulatory function, disability status, and cognition will be assessed. Additionally, they will experience large-scale slip perturbations on a treadmill under the protection of a safety harness at the last assessment. The outcome measures will be compared across the assessments to examine the effects of ublituximab on improving their walking function, disability status, cognition, and the responses to the unexpected slip perturbation.
The purpose of this study is to understand how the brain controls movement and how Non-invasive Brain Stimulation (NIBS) with a technique called High-density transcranial direct current stimulation (HD-tDCS) can alter brain processes to improve behavior. Participants in this study will be randomized to either HD-tDCS with standard intervention or personalized dose-controlled multifocal network-targeted HD-tDCS. The hypothesis is that dexterous hand function will improve after a standard HD-tDCS dose and increase even more after personalized dose-controlled multifocal network-targeted HD-tDCS.
The investigators hypothesize that different continence muscles have different fatigue characteristics and fatigue induced by resisted contractions will result in significant increase in contractility of the continence muscles and improvement of fecal incontinence severity.
Stroke is a leading cause of disability with many patients suffering chronic motor function impairments that affect their day-to-day activities. The goal of this proposal is to provide a first assessment of the efficacy of an innovative non-invasive brain stimulation system, kTMP, in the treatment of motor impairment following stroke.
The specific aim of this study is to compare simultaneous assessment of gastric emptying and gastric accommodation in response to a caloric meal In patients who have previously undergone activation of left cervical VNS for the treatment of medication-resistant depression. Our hypothesis is that cervical VNS increases gastric accommodation and accelerates gastric emptying compared to a bank of healthy control data.