Before treatment starts, patients will have a complete history (including details of previous chemotherapy, radiotherapy, and surgery for systemic disease). Patients will have a complete neuropsychological exam and will have their Karnofsky Performance Score (KPS) figured out. Seven cognitive function tests and a quality of life (QOL) questionnaire will be given to the patients as well. It will take about 40 minutes to complete the QOL questionnaire.