This study explores the use of ear stimulation paired with magnetic brain stimulation to increase enhance plasticity in the motor area of the brain. In short - we are pairing 2 forms of brain stimulation and this study will have 5 different experimental visits during which healthy individuals will receive either real or placebo ear stimulation combined with real or placebo brain stimulation at the MUSC institute of Psychiatry. Motor outcomes will be recorded to determine if the combination of ear and brain stimulation increases cortical excitability.
This study explores the use of a new form of neuromodulation known as transcutaneous auricular vagus nerve stimulation (taVNS) which stimulates the ear. This stimulation will be delivered concurrently with upper limb motor rehabilitation training (3 days/week for 4 weeks) in chronic stroke patients. Patients will undergo a series of baseline assessments (including a brain scan), a 4-week course of motor rehabilitation, and post-assessments (including a second brain scan).