PHOTO-ACOUSTIC STIMULATION: THEORETICALBACKGROUND AND TEN YEARS OF CLINICAL EXPERIENCE

摘要

Light and sound effects have frequently been used for the induction of altered states ofconsciousness. Turning on and off light or sound leads to short-term excitation of thecentral nervous system, while longer lasting stimulation has led to drowsiness and mixedalpha-theta activity and to bodily relaxation with increased skin resistance, decreasedEMG activity and a decreased salivary cortisol level; though an increased salivary IgAlevel and output of the salivary chaperone Hsp70 have also been reported. At the sametime a strong trance inducing ability of photic stimulation (10 min) has been demon-strated. In open clinical studies orofacial psychosomatic patients have been treated:Atypical facial pain (n = 20) recovered in 34.9 %, improvement occurred in 40.4 %, withno effect in 24.7 %. Initial psychogenic denture intolerance (n = 9) symptoms recoveredin 44.4 %, improvement occurred in 33.3 %, with no effect in 22.2 %. Chronic dentureintolerance (n = 14) symptoms recovered in 21.4 %, improvement occurred in 50.0 %,with no effect in 28.6 %. In hyposalivation cases (n = 4), a significant increase of salivaryflow rate and protein concentration occurred in 2/4. However, randomized controlledtrials that might support the application of photo-acoustic stimulation are still lacking