1. Physics Department, Bari Aldo Moro University, Bari, Italy
2. Laboratory of Neuro Imaging, USC Stevens Neuroimaging and Informatics Institute, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, USA
3. INFN, Bari Section, Bari, Italy
4. DiBraiN Department, Neurophysiopathology Unit, Bari Aldo Moro University, Bari, Italy