Neurofeedback (NFB) is a therapy technique that presents the user with real-time feedback on brain wave activity, as measured by electrodes on the scalp, typically in the form of a video display, sound or vibration. The aim is to enable conscious control of brainwave activity.

Biofeedback is a form of treatment that involves measuring a subject's bodily processes such as blood pressure, heart rate, skin temperature, and muscle tension and conveying such information to him or her in real-time in order to raise his or her awareness and conscious control of the related physiological activities.