Abstract Roel van Wijk

The concept of an endogenous photon field in relation to brain activity.

Radiation from nervous tissue, in particular in the UV range, has been subject of study for at least 75 years. This nerve radiation was first estimated by using biological detector systems. Later on, different types of photoelectrical devices were utilized. Development of these physical systems and the concomitant Increase in sensitivity finally led to definite evidence of photon emission from neural tissue. Most data were obtained with highly sensitive photomultiplier systems and more recently the radiation could also be visualized two-dimensionally. Using brain, time studies on photon emission were performed demonstrating that fluctuations corresponded with brain EEG activities. Photon emission has been linked to many more tissue activities. Some evidence points to photon emission as a form of energy loss. Photon emission of intact human subjects estimated from different anatomical locations has been compared. Such emission has also been compared with brain EEG activity in simultaneous recording of both parameters. The data strongly suggest that an endogenous photon field exists and is related to, among others, the brain activity. Additional research lines have focused on the changes of the photon field in chronic disease. Future lines of research will be discussed.