Stroke and other serious brain-related injuries can often require a long road to recovery, with countless hours of rehabilitation to regain motor function and other abilities. Various research groups have been exploring ways to make the rehabilitation process more efficient and engaging by providing auditory feedback to patients as they move, indicating—quite literally—whether the movement was a step in the right direction.

More recently, a group of researchers in Denmark has taken this auditory feedback approach one step further, with a new system that uses synthesized music to guide patients through their rehabilitation exercises. The new musical biofeedback system—and the results of pilot tests of the system with volunteers who have experienced stroke—is described in a study published 10 January in IEEE Transactions on Human-Machine Systems.

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