History of ElectroDiagnosis
Electrodermatography is the recording of the electrical resistance of the skin. In skin conductance, an electrodermographer imposes an imperceptible current across the skin and measures how easily it travels through the skin. The electrodermatogram (EDG) is derived by a particular method of measuring skin resistance and the subject of this course.
It all began in 1833 when Dr. Duchenne de Boulogne became so interested in the procedure of electropuncture that he devoted much of the remainder of his long life to electrical stimulation. He soon found that he could stimulate muscles electrically without piercing the skin and devised cloth-covered electrodes for percutaneous stimulation, the basic design of which is still used. Duchenne called his method of application "localized electrization" and was one of the first to use the alternating current for treatment. Duchenne mapped out the muscles of facial expression and formed the basis of Dr. Charles' famous Jade Facial system to remove facial wrinkles.
In 1952, Reinhold Voll began his quest to map out the points of Electroacupuncture and devising EAV (Electroacupuncture according to Voll). In 1979, Dr. Voll became Dr. Charles' mentor and continues to practice and map out its points to this day.
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