1. Department of Information Engineering, Università Politecnica delle Marche, Via Brecce Bianche, 60131 Ancona, Italy
2. Department of Neuroscience, Imaging and Clinical Sciences, University G d'Annunzio Chieti-Pescara, I-66013 Chieti, Italy
3. École de Technologie Supérieure (ETS), Université du Quebec, Canada