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The Muscle
Whistler was an early biofeedback device, developed by Harry Garland and Roger Melen, which used surface electromyogram (EMG) signals to control an audio tone. The Muscle Whistler was introduced in Popular Electronics magazine in 1971. It was clinically evaluated at Stanford University and
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Muscle
Whistler with EMG surface electrodes (1971).jpg
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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