Francis Lefebure - Meeting With Subuh

Meeting With Subuh

In 1959, his meeting with the Indonesian mage Pak Subuh was decisive, as Dr Lefebure wanted to compare Subuh's exercises with those of his first master. Electroencephalograms were impossible to use as they require muscular relaxation, so he had the idea to monitor the action on a phosphene of the different variations of a same exercise. This is how he discovered the first phosphenic phenomenon that had never been reported before: if the head is moved on a rhythm of two seconds, the phosphene follows that movement. If the movement of the head is faster or slower, the phosphene stays fixed.

This led him to experimenting with what would happen with two phosphenes. The method of brain exploration by the study of the rhythms of double phosphenes seemed to be of extraordinary richness and practical use to him. He wrote a book on the subject. Its first draft was a report that he transmitted to the School Health Service in the spring of 1960. This book describes various rhythmic and cerebral phenomena which were unknown before and that became possible to observe thanks to the Cerebroscope, a device for which the Lefebure was awarded the Silver Medal at the Lépine contest of inventors in 1964.

He then applied this discovery to the ear and designed the Synchrophone which later became the alternophone, a cerebral activation device and wrote "Activating the brain with alternative hearing". He was awarded the Gold Medal and first prize of the Lépine contest in 1963 and the Gold Medal at the International Inventors Fair in Brussels in 1964 for the action on the brain of the alternative hearing device (Alternophonia).