Francesco Bono1, Maurizio Morelli2, Aldo Quattrone3. 1. Institute of Neurology, Department of Medical and Surgical Sciences, University Magna Græcia, Catanzaro, Italy; Neuroimaging Research Unit, IBFM-CNR, National Research Council, Catanzaro, Italy. Electronic address: f.bono@unicz.it. 2. Institute of Neurology, Department of Medical and Surgical Sciences, University Magna Græcia, Catanzaro, Italy. 3. Institute of Neurology, Department of Medical and Surgical Sciences, University Magna Græcia, Catanzaro, Italy; Neuroimaging Research Unit, IBFM-CNR, National Research Council, Catanzaro, Italy.