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1- Faculty of Electrical, Biomedical and Mechatronics Engineering, Qazvin Branch, Islamic Azad University, Qazvin, Iran.
2- Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
3- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
4- CIPCE, Human Motion Control and Computational Neuroscience Laboratory, School of ECE, College of Engineering, University of Tehran,Tehran, Iran.
5- Department of Electrical Engineering, University of Science and Technology, Tehran, Iran.
6- School of Computer Engineering, University of Science and Technology, Tehran, Iran.
7- Faculty of Dentistry, ShahidBeheshti University of Medical Sciences, Tehran, Iran.
8- Seyed Mohammad Ali Seyed Hosseini, Department of Social Sciences, Islamic Azad University North Tehran Branch, Tehran, Iran.
9- Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract:  
This research investigated the effects of violent and football video games on the cognitive functions, cortisol level and variations of brain waves. A total of 64 participants competed in a single-elimination tournament. Saliva samples of all players were obtained before and after games for assessment of cortisol levels. The cognitive performances of player were assessed by PASAT cognitive test. Moreover, EEG recording was conducted during these games. Analysis showed that salivary cortisol levels were significantly decreased after playing both games. In addition, football game was associated with increased reaction time, decreased sustained attention and mental fatigue. Conversely, after violent game reaction time was decreased and sustained attention and mental fatigue were increased. Furthermore, the results of EEG recording revealed that violent game engaged more brain regions than football game. In conclusion , violent game more effectively improved cognitive performances in the players than football game.
 
Type of Study: Original | Subject: Computational Neuroscience
Received: 2018/07/18 | Accepted: 2018/12/2

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