TIANJIN — With electrodes taped to her forearm and a sensor-studded cap on her head, a stroke patient watched a screen where a virtual hand slowly closed. She fixed her gaze on the image, let her attention narrow, and held one thought: make a fist.
TIANJIN — With electrodes taped to her forearm and a sensor-studded cap on her head, a stroke patient watched a screen where a virtual hand slowly closed. She fixed her gaze on…