Autori: Marta Maschio , Francesco Marchesi, Sabrina Dispenza, Loredana Dinapoli, Francesca Sperati, Gianluca Petreri, Svitlana Gumenyuk, Maria Laura Dessanti, Alessia Zarabla, Tonino Cantelmi, Andrea Mengarelli. Background EEG activity is considered an index of functional state of brain. Chemotherapy (CT), used for non-central nervous system (CNS) cancer, can cross the blood brain barrier and contribute to changes in the functional state of brain that can alter background EEG activity. Quantitative EEG (qEEG) is superior to conventional EEG in the detection of subtle alterations of EEG background activity and for this reason, the use of qEEG might assist the clinician in evaluating the possible effect of CT on the CNS.