Ear zap may unlock stroke recovery secrets

This early study tests whether a non-invasive device that gently stimulates a nerve in the ear (taVNS) can change brain activity and genetic markers in people who recently had a stroke. Forty-four participants with arm weakness will receive either real or sham stimulation. Researchers will measure brain waves (EEG) and look at specific genes to understand how the stimulation might help recovery. This is a preliminary study focused on learning, not on proving a treatment works.