Inclusion Criteria:  Participants with normal or corrected vision Participants affiliated to a social security scheme or beneficiaries of such a scheme Participants with French as their mother tongue Participants who have given the signed informed consent before carrying out any procedure related to the study. Volunteer patients will be recruited as part of their follow-up at the CHU. Their pathology will be in agreement with that of the research protocol to be optimized.  Exclusion Criteria:  Criteria relating to contraindications to the explorations provided for by the MRI protocol:  metallic glitter in the eyes retinal operation claustrophobia  wearer of pacemaker or cardiac defribrillator or vascular clip or prosthesis cardiac or insulin pump or implanted device to deliver medication or hearing implant or prosthesis or vascular shunt or paragraph or screws, plate metal or tattoo or piercing or implanted metal object or lead shot hunt  Alcohol ingestion before the examination Pregnant, lactating and parturient women Major protected by law Participants under administrative or judicial supervision Participation in another ongoing study if the study may interfere with participation in the protocol MAP-IRMaGe.