Author contributions
E.D. takes responsibility for the content of the article, including the data and analysis. She conceived the study and has personally made contributions to the design of the study, to the foot tactile stimulation, and to the discussion of the results. P.P. have conducted the inclusion visit for patients. K.J. have contributed to the reflexion concerning networks used in the analysis. M.B. have contributed to the analysis and interpretation of the data. M.B. and E.D. wrote the report. All authors have revised the submitted article critically for important intellectual content and they have provided final approval of this version to be published.