This is a videocast from the National Cancer Institute (April 26, 2006)
Dr. Bruce Rosen discussed how neuroimaging techniques such as functional magnetic resonance imaging (fMRI), pharmacological magnetic resonance imaging (phMRI), and positron emission tomography (PET) have brought considerable clarity to the heretofore rather secretive bases of acupuncture's effects on the human mind and body.
You will need RealPlayer or WindowsMediaPlayer to watch this.