Brain scan Tune-Up: healthy volunteers help researchers recalibrate MRI machines

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Men or women aged 18 to 86 inclusive; * Affiliated to a social health insurance scheme * Able to understand the objectives and risks of the research and to give dated and signed informed consent; * B2 or above level of French language according to the European Framework of Reference for Languages; * No personal or family psychiatric history of endogenous psychosis, including substance abuse (excluding moderate tobacco, alcohol and caffeine use); * No chronic pathology requiring treatment (mainly diabetes, hypertension, hyperlipidemia or cholesterolemia); * Matched on age, gender and education level of the patients included in our different studies * Woman of childbearing age: negative urine pregnancy test at the inclusion visit and effective contraception throughout the study (intrauterine device, sterilisation, oestrogen or progestin per os, injectable or as an implant or ring). Exclusion Criteria: * Contraindication to MRI or rTMS: presence of a non-removable ferromagnetic foreign body, prosthesis, pacemaker, medication delivered by an implanted pump, vascular clip or stent, heart valve or ventricular bypass, epilepsy; * History that may affect brain anatomy or be related to an abnormality (neurosurgery, epilepsy, stroke, head injury with loss of consciousness for more than 15 minutes and mental retardation - Intelligence Quotient (IQ) \< 70 on the fNART); * History of potentially affecting brain function (general anaesthesia or Electroconvulsive Therapy (ECT) \< 3 months prior to inclusion); * Breastfeeding women ; * Pregnant women ; * Serious or unstabilised somatic pathology ; * Chronic intake of a treatment related to an ongoing disease; * Deprived of liberty, in forced care or under legal protection ; * Under guardianship or curatorship ; * Emergency or life-threatening situation) ; * Exclusion period (determined by a previous or current study).