Glossary E

Glossary E

Electrodermal response refers to a measure of skin resistance to an electrical current Skin conductivity increases with increasing arousal and increasing perspiration. Electrodermal response is also known as Galvanic skin response.

Electroencephalogram refers to an electrophysiological measure of brain functioning whereby electrodes are taped to the surface of the subject’s scalp to record the electrical activity of the brain.

Electroencephalogram (EEG) refers to the
electrical measurements of brain wave activity.

Electrolyte imbalance is defined as a condition caused by loss of body minerals.

Electromagnetic spectrum is defined as continuum of electromagnetic energy that extends from very-short-wavelength gamma rays to long-wavelength radio waves. Visible light is a narrow band within this spectrum.

An Electromyograph (EMG) is defined as a test which measures muscle response to nerve stimulation. It is used to evaluate muscle weakness and to determine if the weakness is related to the muscles themselves or a problem with the nerves that supply the muscles.

Electromyograph biofeedback refers to the feedback that reflects activity of the skeletal muscles. Electromyograph biofeedback is also called EMG biofeddback.

refers to measurement of muscle tension through electrical sensors at skin surface