Department of Biology, University of Rome, Tor Vergata, Rome, Italy

Centro Europeo Ricerca sul Cervello C.E.R.C / Fondazione Santa Lucia, IRCCS, Via del Fosso di Fiorano 65, Rome, Italy

Contacts: claudia.bagni@uniroma2.it Tel: +39-06/72594223 ; +39-06/501703213 

Fax: +39-06/2023500 ; +39-06/501703002