Volume 11, Issue 3 (May & June 2020)                   BCN 2020, 11(3): 279-288 | Back to browse issues page


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Aliyari H, Sahraei H, Erfani M, Mohammadi M, Kazemi M, Daliri M R, et al . Changes in Cognitive Functions Following Violent and Football Video Games in Young Male Volunteers by Studying Brain Waves. BCN. 2020; 11 (3) :279-288
URL: http://bcn.iums.ac.ir/article-1-1287-en.html
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- 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, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
8- Department of Social Sciences, Islamic Azad University North Tehran Branch, Tehran, Iran.
9- Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran.
Abstract:  
Introduction: This research investigated the effects of violent and football video games on cognitive functions, cortisol levels, and brain waves.
Methods: A total of 64 participants competed in a single-elimination tournament. Saliva samples of all players were obtained before and after the games for the assessment of cortisol levels. The cognitive performances of the players were also assessed by paced auditory serial addition test. Moreover, the electroencephalogram recording was conducted during the games. 
Results: The results showed that salivary cortisol levels significantly decreased after playing both games. Also, playing the football game increased reaction time, whereas decreased sustained attention and mental fatigue. 
Conclusion: Conversely, following playing a violent game, the reaction time decreased, and sustained attention and mental fatigue increased. Furthermore, the results of the EEG recording revealed that playing a violent game engaged more brain regions than the football game. In conclusion, playing violent game more effectively improved cognitive performances in the players than the football game.
Type of Study: Original | Subject: Computational Neuroscience
Received: 2018/07/18 | Accepted: 2018/12/2 | Published: 2020/05/1

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