title: Color filters and human photon emission: implications for auriculomedicine.
abstract: BACKGROUND
  Color filters are commonly utilized in auriculotherapy and auriculomedicine, diagnostic procedures based on the vascular autonomic signal (VAS) of the radial artery. It was reported that such effects were detectable in complete darkness. The human body emits ultraweak photons. It is hypothesized that there is feedback regulation of emission from the hand, implying an exchange of information vis-à-vis light from both hand and filter.
  
  
  OBJECTIVE
  To develop a research protocol for evaluating a possible effect of dark-adapted color filters on ultraweak human photon emission.
  
  
  METHODS
  Photon emission of the hand was recorded before, during, and after the presence of color filters. The filters were dark adapted and placed in close proximity but not touching the hand of the dark-adapted subject. SETTING AND PARTICIPANT: A specially selected, low-noise, end window photomultiplier for recording ultraviolet and visible (200-650 nm) photon emission (with a very low background count rate) designed for manipulation in three directions was situated in a dark room. The technology in the initial pilot series study was utilized to record spontaneous photon emission of the hand of one human male subject. The same series was repeated on the same subject three months later.
  
  
  METHODS
  The change in photon emission of the hand after exposure to single color filters was the main outcome parameter.
  
  
  RESULTS
  Data demonstrate very similar responses for each of three different color filters. Data from consecutive time series suggest initiation of a refractory emission reaction. The response was dependent on the size of color surface and was neither detected with colorless transparent filters nor with nontransparent material.
authors.affiliation: International Institute of Biophysics, Neuss, Germany; Utrecht University, Utrecht, The Netherlands. meluna.wijk@wxs.nl
authors.forename: Roeland
authors.initials: R
authors.lastname: Van Wijk
authors.forename: John M
authors.initials: JM
authors.lastname: Ackerman
authors.forename: Eduard P A
authors.initials: EP
authors.lastname: Van Wijk
mesh_terms: D020831:Acupuncture, Ear; D001703:Biophysics / Q000379:methods; D003624:Darkness; D006225:Hand / Q000502:physiology; D006801:Humans; D008163:Luminescent Measurements; D017785:Photons; D013057:Spectrum Analysis; D014466:Ultraviolet Rays