[1] CHU Toulouse Rangueil, Serv Explorat Fonct Physiol, F-31059 Toulouse, France
[2] Univ Toulouse, Toulouse NeuroImaging Ctr, UPS, Inserm,UMR 1214, F-31024 Toulouse, France
[3] Univ Claude Bernard Lyon 1, Univ Gustave Eiffel, Univ Lyon, LBMC,UMR T 9406, F-69622 Lyon, France
[4] CHU Toulouse Purpan, Ctr Evaluat & Traitement Douleur, Serv Neurochirurg, F-31059 Toulouse, France
[5] CHU Toulouse Purpan, Ctr Reference Malad Neuromusculaires, Dept Neurol, F-31059 Toulouse, France
[6] CHU Toulouse Purpan, Hop Enfants, Lab Anal Marche, F-31059 Toulouse, France