The Open Complementary Medicine Journal


ISSN: 1876-391X ― Volume 6,

Repeatability of Measurements of Galvanic Skin Response – A Pilot Study

The Open Complementary Medicine Journal, 2013, 5: 11-17

Joop Muller, Wim Pet, Ellen Pet-Reatsch, Riek Servaas, Riek Servaas, Femke Ansems, Daniel Schwander, Gary Firer, Harald Lothaller, P.C. Endler

Interuniversity College for Health and Development, Graz / Castle of Seggau, Austria.

Electronic publication date 03/5/2013
[DOI: 10.2174/1876391X01305010011]



To scrutinize repeatability of measurements of galvanic skin response (GSR) using a complementary therapy device.


GSR diagnosis is closely related to the Chinese system of acupuncture points. These are assumed to show increased electrical conductivity that is super influenced by the (stressed or weak) state of related organs and organ systems including the vagal / simpatico system. GSR techniques apply a constant voltage. For the device used here, a “biophoton therapy device”, a circuit includes a brass electrode that is held in one hand of the test person, and a style electrode for contact with his or her other hand. When the organism is exposed to external influences, skin conductivity may change within split seconds (increase or decrease). Here, it was aimed to transfer information from test substances into the circuit. Paracetamol® was dissolved in water, and both this test probe and control water were put into quartz glass vials. Following a sequence unknown to the tester, the vials were inserted into the input quartz-glass beaker of the device. A decrease in skin conductivity due to the information from Paracetamol® is assumed to be measurable at the acupuncture point “TW-1D-lefthand-pituitary gland”. Repeated measurements with breaks for recovery were carried out. Three sub studies consisted of 5 unblinded and 10 blinded tests each. Depending on the sub study, one to five different tested volunteers and testers were involved. Data were analyzed blind using a two-way analysis of variance with treatment (i.e. test or control) and sub study as independent variables and the frequency of diagnosed indicator drops as the dependent variable. Furthermore, frequency of diagnosed indicator drops was compared to the frequency of non drops both for the test and the control probe in four field tables. In a random distribution, one would expect about 50% in each of the four fields.


A significant main effect for treatment group was observed over all three studies (p<.001). The mean frequency of diagnosed indicator drops was higher for the test probe than it was for control. No main effect was found for sub study (p>.05), indicating that there were no differences between the three sub studies. In addition, no interaction effect between the variables treatment group and sub study was found (p>.05). This means that (a) the significant overall difference between treatment groups holds for each sub study in the same way and (b) the non-difference between sub studies holds both for intoxication and non-treatment. In terms of the pooled results of all three substudies the test probe was correctly detected in 77.5% of cases, with 22.5% false positive results. In reverse, the neutre control was correctly diagnosed in 68.6%, with 31.4% false negative results.


Results suggest that information from substances can influence biological systems and that measurements of electric skin conductivity, as used for diagnostic purposes, are repeatable under standardized and blind conditions.

Download PDF

Track Your Manuscript:


"Open access will revolutionize 21st century knowledge work and accelerate the diffusion of ideas and evidence that support just in time learning and the evolution of thinking in a number of disciplines."

Daniel Pesut
(Indiana University School of Nursing, USA)

"It is important that students and researchers from all over the world can have easy access to relevant, high-standard and timely scientific information. This is exactly what Open Access Journals provide and this is the reason why I support this endeavor."

Jacques Descotes
(Centre Antipoison-Centre de Pharmacovigilance, France)

"Publishing research articles is the key for future scientific progress. Open Access publishing is therefore of utmost importance for wider dissemination of information, and will help serving the best interest of the scientific community."

Patrice Talaga
(UCB S.A., Belgium)

"Open access journals are a novel concept in the medical literature. They offer accessible information to a wide variety of individuals, including physicians, medical students, clinical investigators, and the general public. They are an outstanding source of medical and scientific information."

Jeffrey M. Weinberg
(St. Luke's-Roosevelt Hospital Center, USA)

"Open access journals are extremely useful for graduate students, investigators and all other interested persons to read important scientific articles and subscribe scientific journals. Indeed, the research articles span a wide range of area and of high quality. This is specially a must for researchers belonging to institutions with limited library facility and funding to subscribe scientific journals."

Debomoy K. Lahiri
(Indiana University School of Medicine, USA)

"Open access journals represent a major break-through in publishing. They provide easy access to the latest research on a wide variety of issues. Relevant and timely articles are made available in a fraction of the time taken by more conventional publishers. Articles are of uniformly high quality and written by the world's leading authorities."

Robert Looney
(Naval Postgraduate School, USA)

"Open access journals have transformed the way scientific data is published and disseminated: particularly, whilst ensuring a high quality standard and transparency in the editorial process, they have increased the access to the scientific literature by those researchers that have limited library support or that are working on small budgets."

Richard Reithinger
(Westat, USA)

"Not only do open access journals greatly improve the access to high quality information for scientists in the developing world, it also provides extra exposure for our papers."

J. Ferwerda
(University of Oxford, UK)

"Open Access 'Chemistry' Journals allow the dissemination of knowledge at your finger tips without paying for the scientific content."

Sean L. Kitson
(Almac Sciences, Northern Ireland)

"In principle, all scientific journals should have open access, as should be science itself. Open access journals are very helpful for students, researchers and the general public including people from institutions which do not have library or cannot afford to subscribe scientific journals. The articles are high standard and cover a wide area."

Hubert Wolterbeek
(Delft University of Technology, The Netherlands)

"The widest possible diffusion of information is critical for the advancement of science. In this perspective, open access journals are instrumental in fostering researches and achievements."

Alessandro Laviano
(Sapienza - University of Rome, Italy)

"Open access journals are very useful for all scientists as they can have quick information in the different fields of science."

Philippe Hernigou
(Paris University, France)

"There are many scientists who can not afford the rather expensive subscriptions to scientific journals. Open access journals offer a good alternative for free access to good quality scientific information."

Fidel Toldrá
(Instituto de Agroquimica y Tecnologia de Alimentos, Spain)

"Open access journals have become a fundamental tool for students, researchers, patients and the general public. Many people from institutions which do not have library or cannot afford to subscribe scientific journals benefit of them on a daily basis. The articles are among the best and cover most scientific areas."

M. Bendandi
(University Clinic of Navarre, Spain)

"These journals provide researchers with a platform for rapid, open access scientific communication. The articles are of high quality and broad scope."

Peter Chiba
(University of Vienna, Austria)

"Open access journals are probably one of the most important contributions to promote and diffuse science worldwide."

Jaime Sampaio
(University of Trás-os-Montes e Alto Douro, Portugal)

"Open access journals make up a new and rather revolutionary way to scientific publication. This option opens several quite interesting possibilities to disseminate openly and freely new knowledge and even to facilitate interpersonal communication among scientists."

Eduardo A. Castro
(INIFTA, Argentina)

"Open access journals are freely available online throughout the world, for you to read, download, copy, distribute, and use. The articles published in the open access journals are high quality and cover a wide range of fields."

Kenji Hashimoto
(Chiba University, Japan)

"Open Access journals offer an innovative and efficient way of publication for academics and professionals in a wide range of disciplines. The papers published are of high quality after rigorous peer review and they are Indexed in: major international databases. I read Open Access journals to keep abreast of the recent development in my field of study."

Daniel Shek
(Chinese University of Hong Kong, Hong Kong)

"It is a modern trend for publishers to establish open access journals. Researchers, faculty members, and students will be greatly benefited by the new journals of Bentham Science Publishers Ltd. in this category."

Jih Ru Hwu
(National Central University, Taiwan)

Browse Contents

Webmaster Contact:
Copyright © 2022 Bentham Open