TIANJIN, July 2 (Xinhua) -- 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, ...

早晨醒来，你想喝一杯咖啡。对大多数人来说，这意味着伸手、握杯、端起三个连贯动作，耗时不过数秒。但对于脊髓损伤或肌萎缩侧索硬化症（ALS）患者，这套动作可能意味着需要另一位人类全程协助，甚至永远无法独立完成。