1. Process for the computerized prevision of intended movements (X) from neuronal signals (Y) of a proband's brain, wherein the neuronal signals (Y) are associated each time with intended movements (X) in the brain, wherein the most likely movements (X) are determined based on detected neuronal signals (Y), namely using at least one model, wherein the at least one model describes a mapping (H) of neuronal signals (Y) on the possible intended movements (X), wherein the process comprises: a step in which the at least one model is updated, wherein the update takes place using the detected neuronal signals (Y) and without knowledge of the intended movement, a step of the calculation of the currently most likely movement X with the at least one updated model.