Non-medicinal Technique and Dyspnea in Weaning Patients

Patients who will receive protocolized medical hypnosis before the SBT every day between inclusion and day 7. Medical hypnosis sessions will consist in the administration of a 5-min hypnotic text by a loudspeaker installed in the ICU room, after selection of a hypnotic theme (sea, mountain or animals) by the participant. The hypnosis session will involve an induction phase, a suggestion phase and an emergence phase, along with self-hypnosis tips. The hypnosis session will immediately precede the SBT (\<2h). The intervention is administered before the SBT daily from the randomization to day 7 or until extubation.

The protocolized standard of care will consist in the description of authorized human/behavioral patient-nurse interactions and patient installation prior to the daily SBT.