- #Galvanic skin response measurement device skin
- #Galvanic skin response measurement device software
- #Galvanic skin response measurement device plus
The current market leader of EDS systems appears to be ZYTO Technologies of Lindon, Utah. This was no surprise because glass does not conduct electricity, so even if the products emitted electric signals, they could not escape from the vial. A few years later, I learned that placing products into the honeycomb of a Vegatest device had no effect on its readings (Mosenkis 2001). During the testing, I noticed that the harder the probe was pressed against my skin, the higher the reading on the computer screen-which is not surprising, because pressure reduces electrical resistance and makes the current flow better from the probe to the skin.
#Galvanic skin response measurement device plus
In 1986, after testing me with an INTERRO device, the clinic proprietor said I had a number of electromagnetic blockages plus “temporomandibular joint stress, probable subclinical allergies, and possible mild early preclinical arthritis” (Barrett 1987). I stumbled onto the fakery of these devices during an investigation of homeopathy for Consumer Reports magazine. After the alleged problems are “diagnosed,” glass vials containing homeo- pathic solutions are placed in the metal honeycomb and the tests are repeated to determine which will correct the alleged “imbalances.” The reading supposedly determines the status of various organs of the body. As the other probe is touched to the patient’s other hand or foot, a bar rises on the right side of the computer screen, accompanied by a noise. The iTOVi Nutrition Tracker uses a hand-held scanner that plugs into a smartphone loaded with an app that generates recommendations (Barrett 2017a). ZYTO devices use a hand cradle that plugs into a computer. Most recent systems don’t use a probe but have the patient continuously connected through one or more components that serve as electrodes.
#Galvanic skin response measurement device software
Some systems, most notably the INTERRO, used a dedicated computer, whereas others provided software that would run on a standard computer.Īs these evolved, the products being tested in vials were replaced by computer codes said to represent the products, and software was programmed to display elaborate charts, pictures, and lists of body areas, symptoms, diseases, and supposedly corrective measures. Subsequent EAV devices replaced the gauge with a computer that reflected the measurements on its screen, reported what organs might be affected, suggested what products might be most useful, and added dietary supplements and herbal preparations to the recommended product mix. Voll declared that readings from 45 to 55 were normal (“balanced”), readings above 55 indicated inflammation of the organ “associated” with the meridian being tested, and readings below 45 suggested “organ stagnation and degeneration.” Homeopathic products would be administered and the patient retested until everything was determined to be “balanced.” Other early devices, such as the Vegatest, added a honeycomb into which vials of remedies could be placed to test whether their contents would supply the hoped-for balance.
#Galvanic skin response measurement device skin
The Dermatron measured the electrical resistance of the patient’s skin at each point touched by the probe and displayed it on a gauge as a number from 0 to 100. Another wire went from the device to a probe that the operator touched to supposed “acupuncture points” on the patient’s other hand or a foot. The device emitted a tiny direct current that flowed through a wire to a metallic cylinder that the patient held in one hand. Voll’s first transistorized model-the Dermatron-was a box with two gauges, several dials, and wired components that would be placed in contact with the patient’s skin. In 1958, he combined Chinese acupuncture theory with galvanic skin response measurements to determine what he said was the body’s flow of “electro-magnetic energy” along “acupuncture meridians” (Barrett 2016a). Proponents attribute their origin to Reinhold Voll, a West German physician/acupuncturist who asserted that skin resistance is related to the health of the body’s internal organs. At least forty have been marketed during the past sixty years. In addition to my experience, this article describes the history of EDS devices and why I believe they should be banned.Įlectrodermal screening devices are said to measure and react to skin resistance to the passage of low-level electrical current. Last year, I tested myself with a leading EDS device forty-three times in ten days and found that the results were preposterous. The use of galvanometric devices to make health assessments is commonly referred to as electrodermal screening (EDS) or electroacupuncture according to Voll (EAV).