Effectiveness of Noninvasive Vagus Stimulation for Upper Extremity in Parkinson's Disease

Vagus nerve stimulation in the treatment of PD is a non-pharmacological intervention with the potential to improve gait, cognition, fatigue, and autonomic functions, but more evidence is needed for VSS in the treatment of PD. The potential mechanisms of VSS in the improvement seen in PD are explained by increased cholinergic transmission, decreased neuroinflammation, and enhanced NE release. In this study, it was aimed to investigate the effects of non-invasive vagus nerve stimulation to be applied to patients with Parkinson's disease on tremor and vagus nerve activity in patients. The tremor and autonomic activations of the participants will be evaluated at pre and post treatment.