Researchers at the University of York and the Hull York Medical School published in Brain Research, indicates that acupuncture has a significant effect on specific neural structures. When a patient receives acupuncture treatment, a sensation called deqi can be obtained; scientific analysis shows that this deactivates areas within the brain that are associated with the processing of pain.
Dr Hugh MacPherson, of the Complementary Medicine Research Group in the University's Department of Health Sciences, says: "These results provide objective scientific evidence that acupuncture has specific effects within the brain which hopefully will lead to a better understanding of how acupuncture works."
Neuroscientist Dr Aziz Asghar, of the York Neuroimaging Centre and the Hull York Medical School, adds: "The results are fascinating. Whether such brain deactivations constitute a mechanism which underlies or contributes to the therapeutic effect of acupuncture is an intriguing possibility which requires further research."

Current clinical trials at the University of York are investigating the effectiveness and cost-effectiveness of acupuncture for Irritable Bowel Syndrome (IBS) and for depression. Recent studies in the US have also shown that acupuncture can be an effective treatment for migraines and osteoarthritis of the knee

Sources:
University of York (2010, February 4). Study maps effects of acupuncture on the brain.
Science Daily Retrieved February 5, 2010