Autonomic Response Testing (ART) grew out of the importance of detecting and correcting problems of the autonomic nervous system. ART allows the doctor to correct the problems of the ANS and to help restore the self regulating mechanism of the body allowing the patient to return to a state of health. Autonomic Response Testing (ART) is a system of evaluation and treatment developed by Dietrich Klinghardt, MD, Ph.D and Lousia Williams, DC, ND. Dr. Klinghardt is a German trained physician who also has a Ph.D in neurology. ART uses Applied Kinesiology, Electroacupuncture (EAV), O-Ring testing, Nogier pulse, Chinese pulse, heart rate variability and other techniques to assess the health or dysfunction of the autonomic nervous system.
http://www.worldwidehealthcenter.net/directory-73.html
For a very detailed description of ART see:
http://www.nihadc.com/ARTcomplete.pdf