Changes in Cognitive Functions Following Violent and Football Video Games in Young Male Volunteers by Studying Brain Waves oleh Hamed Aliyari, Hedayat Sahraei, Marjan Erfani, Mohammad Mohammadi, Masoomeh Kazemi, Mohammad Reza Daliri, Behrouz Minaei-Bidgol, Hassan Agaei, Mohammad Sahraei, Seyed Mohammad Ali Seyed Hosseini, Elaheh Tekieh, Maryam Salehi, Fereshteh Farajdokht