[Psychotherapy assisted by psychedelics, intense and unusual exposures therapy]

There is a renewed interest in the use of psychedelics in the treatment of addictions. The mode of action of psychedelics could be explained by the addictolytic effect of the substance or by an amplifying effect a unique experience. If studies are lacking on the intrinsic addictolytic effects of psychedelics in humans, animals and in vitro experiences show an increase in neurogenesis. In humans, the effectiveness could be explained by the intensity of the lived experience. If the purely experiential aspect is the key to the effectiveness of treatment, it strengthens the idea that psychedelics act as reinforcers of the psychotherapeutic experience by exposure to intense and unusual internal stimuli.