The History and Practice of Biofeedback

Paul Enck

Paul Enck

University Hospitals Tübingen, Department of Psychosomatic Medicine, Tübingen, Germany

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Sibylle Klosterhalfen

Sibylle Klosterhalfen

University of Düsseldorf, Institute of Medical Psychology, Düsseldorf, Germany

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Roberto Merletti

Roberto Merletti

Polytecnic of Torino, Laboratory for Engineering of the Neuromuscular System, Department of Electronics, Torino, Italy

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Abstract

Individuals tend to increase the frequency of positively rewarded behaviors and to decrease the frequency of nonrewarded or punished behaviors. Biofeedback involves measuring a subject's physiological variable, such as blood pressure, heart rate, skin temperature, galvanic skin response, muscle force and/or electromyography (EMG) signals, and conveying such information to him/her in real time to raise his/her awareness and conscious control of the related physiological processes for the purpose of enhancing or relearning such processes.

By providing access to physiological information about which the user is generally unaware, biofeedback allows users to increase (or regain) control over physiological processes.

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