Types of Biofeedback Machines or Biofeedback Techniques

Galvanic skin response (GSH) or Electrodermal Response (EDR)

Also known as Electrodermal Response (EDR), Galvanic skin response measures electrical conductance in the skin, which is associated with the activity of the sweat glands. A very slight electrical current (unnoticeable to you) is run through your skin. The machine measures changes in the salt and water in your sweat gland ducts. The more emotionally aroused you are, the more active your sweat glands are and the greater the electrical conductivity of your skin. GSR is effective in treating phobias, anxiety, excessive sweating, and, at times, stuttering since these emotions will affect your skin's conductivity. It is used as a lie detection test. Athletes use this technique to prepare for games - to make sure that they are not too anxious or have pre-game jitters.

Next: Electroencephalogram (EEG)

See Also:

Electromyogram (EMG)
Temperature Biofeedback

Electroencephalogram (EEG)

Other Types of Biofeedback Instruments

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Types of Biofeedback Machines or Biofeedback Techniques

Galvanic skin response (GSH) or Electrodermal Response (EDR)