A Conte1, G Ferrazzano2, A Berardelli3. 1. Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy; IRCCS Neuromed, Pozzilli (IS), Italy. 2. Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy. 3. Department of Human Neuroscience, Sapienza University of Rome, Rome, Italy; IRCCS Neuromed, Pozzilli (IS), Italy. Electronic address: alfredo.berardelli@uniroma1.it.