Biofeedback definition

Recently, three key associations, the International Society for Neurofeedback & Research (ISNR), the Association for Applied Psychophysiology and Biofeedback (AAPB) and the Biofeedback Certification Institute of America (BCIA) adopted the following definition of biofeedback:

"Biofeedback is a process that enables an individual to learn how to change physiological activity for the purposes of improving health and performance. Precise instruments measure physiological activity such as brainwaves, heart function, breathing, muscle activity, and skin temperature. These instruments rapidly and accurately "feed back" information to the user. The presentation of this information - often in conjunction with changes in thinking, emotions, and behavior - supports desired physiological changes. Over time, these changes can endure without continued use of an instrument."