Does Position Influence the Diagnosis of Detrusor Overactivity in a Neurological Population

1st consultation (selection - D-15): * Targeted questioning of disorders, completion of USP self-questionnaire, and UPDRS or EDSS scales as part of care. * Verification of ultrasound results (for men). * Schedule Urodynamic Assessment as part of treatment. * Verification of eligibility criteria * Partial information of the patient (or relative/guardian/guardian if applicable) to limit bias, and a period of reflection prior to the urodynamic test to collect consent. On the day of the Urodynamic Assessment (D0): * Written, free and informed consent. * Data collection by a physician trained in the study, * Randomization of patient to determine starting position (lying or sitting) for urodynamic assessment (via CleanWeb). * Urodynamic assessment according to ICS recommendations, with constant filling speed over the 2 fillings (50 ml/min), water filling - Laborie machine - T-Doc system in both positions in the order defined by randomization, and printout of curves. * Entry of socio-demographic data. * Curves reread by a doctor who had not performed the examination and who did not know the patient or the starting position (single blind). * Completion of the paper file by the physician reading the curves, with the following data for position 1 and position 2: * Volume at B1 and B3 (in ml) * Basal bladder pressure (cm / H2O) * Occurrence of CNID or mictional reflex arc (diagnosis of detrusor overactivity) * Volume of leakage or 1st NIDC (Uninhibited Detrusor Contraction) (ml) or * Bladder pressure at leakage (cm / H2O) * Maximum bladder pressure (cm / H2O) * Paper data entry on Excel database by a trained investigator declared on the study