What is Biofeedback?

Biofeedback - Definition

Biofeedback is the feedback of physiological signals (bio-) that normally are subconscious and are regulated by the nervous system. Biofeedback methods help to make body functions perceptible that are normally not.

Everything we get feedback of, we can learn to change, for example:

  • Heartrate
  • Blood flow
  • Muscle tension
  • Sweat gland activity
  • Breathing
  • Brain function (= neurofeedback or EEG-biofeedback)

Biofeedback und Neurofeedback

Originally biofeedback is a generic term that includes both peripheral biofeedback and neurofeedback. Peripheral biofeedback is feedback from body function signals that are directly related to the autonomic nervous system, whereas neurofeedback (EEG-biofeedback) means feedback of the brain activity, and therefore of the central nervous system.

Commonly, for peripheral biofeedback, mostly the term biofeedback is used and neurofeedback (feedback of brain activity) is contrasted with it. 
More specifically on neurofeedback you can find here:

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