Friday, August 28, 2009
Thursday, August 20, 2009
Department of Electronics and Intelligent Systems, Tohoku Institute of Technology, Sendai, Japan, 2 Department of Systems Biology, Kyoto University Graduate School of Pharmaceutical Sciences, Kyoto, Japan, 3 Department of Brain Science, Kobe University Graduate School of Medicine, Kobe, Japan
The human body literally glimmers. The intensity of the light emitted by the body is 1000 times lower than the sensitivity of our naked eyes. Ultraweak photon emission is known as the energy released as light through the changes in energy metabolism. We successfully imaged the diurnal change of this ultraweak photon emission with an improved highly sensitive imaging system using cryogenic charge-coupled device (CCD) camera. We found that the human body directly and rhythmically emits light. The diurnal changes in photon emission might be linked to changes in energy metabolism.
Interesting quotes from article:
- In all images, photon emission intensity from the face was higher than from the body. Moreover, photon emission intensity from the face was not homogeneous: the central area around the mouth and the cheeks was higher than the lateral area and the orbits. Furthermore, the photon emission intensity on the face and upper body appeared to display time-dependent changes.
- Ultraweak biophoton emission was completely different from thermographic images showing surface temperature (Fig.1I). High photon emission were detected from the cheeks, followed by the upper neck and the forehead, while high temperature was detected in the supraclavicular lateral neck region, from which photon emission was low.
- No significant correlation of daily photon intensity and temperature was found, and the dissimilarity between photon emission and thermal image suggest that the diurnal rhythm of photon emission is not a consequence of a change of temperature or microcirculation.
Link to full article: http://www.plosone.org/article/info:doi/10.1371/journal.pone.0006256