The possible use of a modified photo-acoustic stimulation technique was investigated in the explorative part of the psychotherapy of atypical oro-facial pain patients (n = 20; 13 females, 7 males; age between 39-59; psychiatric diagnostic categories in ICD-10: F41.2, F45.1) Since the stimulatory effects of this method cause difficulties to induce free imaginations, previously the main indication of this technique was the ego-strengthening of the patients, to help them to recognise and to verbalise emotions. In the modified technique, specific suggestions coming from detected changes of the patients' emotions, their symptoms, or their social activities are used. Our early results suggest that the modified technique advantageously speeded up the therapeutic process, but did not change the final therapeutic outcome.