The Autonomic Nervous System is accessed by two via main, the medication through and the sensory stimulation. Neuroscience at the service of psychology and ancient knowledge based on Traditional Chinese Medicine, developed forms of desensitization of somatic and emotional pain whose effects are nearly instantaneous:
From Neuroscience we find Eye Movement Desensitization and Reprocessing (EMDR technique), developed by Dr. Francine Shapiro, that anaesthetize somatic and emotional pain through bilateral stimulation (right and left brain hemispheres) by eye movement or tapping on the extremities (hands or knees mostly) means. A second option is represented by the technique called Brief Multi-Sensory Activation (BMSA), developed by Dr. Joaquin Andrade (Uruguay), Dr. Maarten Aalberse (France) and Dr. Christine Sutherland (Australia), which works as a sensory stimulation storm to flood the integration center of the brain, the amygdala and the thalamus, meanwhile the disgusting scene is recalled. The third option that I know is represented by techniques based on Subtle Touch such as Calatonia (developed by Dr. and Professor Pethő Sándor) and Havening
Techniques (by Dr. Ronald Ruden). The first one is about calibrating the autonomic functions (breathing, sleep, heartbeats, digestion, etc.) under deep relaxation. The second one is exclusively applied to Trauma addressing through subtle touch meanwhile the painful scene is recalled.
From Traditional Chinese Medicine, through Emotional Freedom Technique (EFT) developed by Gary Craig, by performing tapping over acupressure points. The first of the most impressive applications are represented by resolution phobias to anesthetize the affective charge of the phobic object evoked (tapping on the lower orbital bone from each eye), resolving them in a few minutes. The second shocking use is the tapping on the edge of the hand that anesthetizes somatic and/or emotional sensations that grind to a halt to the person.
There is another strategy called Sweeping Technique based on directed straight eye movement while the discomfort is evoked. This tool belong to EMDR. It is excellent to sweep unpleasant sensory and emotional remains left behind by a traumatic reprocessing. It is very important to dismiss the patient without these ballasts because the patient is negatively fascinated by the experience. This condition leaves him with little receptivity of the external world and self-absorbed, making him a potential accident at the time of being at the street.