Guillaume Herbet1, Gilles Lafargue2, Hugues Duffau3. 1. 1 Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Centre, F-34295 Montpellier, France 2 Institute for Neuroscience of Montpellier, INSERM U1051, Team 'Plasticity of Central Nervous System, Human Stem Cells and Glial Tumours', Saint Eloi Hospital, Montpellier University Medical Centre, France guillaume.herbet@gmail.com. 2. 3 University Lille, EA 4072, PSITEC: Psychologie, Interactions, Temps, Emotions, Cognition, F-59000, France. 3. 1 Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Centre, F-34295 Montpellier, France 2 Institute for Neuroscience of Montpellier, INSERM U1051, Team 'Plasticity of Central Nervous System, Human Stem Cells and Glial Tumours', Saint Eloi Hospital, Montpellier University Medical Centre, France.