RT - Journal Article T1 - The Role of Brain-Behavioral Systems in Internet Addiction: With Regard to Revised Reinforcement Sensitivity Theory JF - sjimu YR - 2016 JO - sjimu VO - 24 IS - 2 UR - http://sjimu.medilam.ac.ir/article-1-2572-en.html SP - 119 EP - 129 K1 - Brain-behavioral systems K1 - Internet addiction K1 - Reinforcement sensitivity theory AB - Introduction: There were many conflicts about involvement of Internet addiction in fifth version of Diagnostic and Statistical Manual of mental disorders (DSM-V). As personality characteristics are one of the risk factors of risky behaviors, this study have investigated the role of neurobehavioral factors of personality in Internet addiction. Materials & Methods: This study is a correlational study. For this procedure, among all students of Kharazmi university of Tehran, 359 participants (196 male and 163 female) were selected through Multi-stage cluster sampling. They answered Jackson-5 scale and Young’s Internet addiction test. Data were analyzed by stepwise regression method by SPSS.22. Findings: Analyzing data showed that Freeze and Fight of Fight/Flight/Freeze system could predict Internet addiction (P<0.001, R= 0.40, R2= 0.16). After analyzing genders separately, Freeze, Flight, and Fight could predict addiction in males (P<0.001, R= 0.55, R2= 0.30), but only Fight and Freeze predicted addiction in females (P<0.001, R= 0.26, R2= 0.07). Discussion & Conclusions: From all brain-behavioral systems, only fear and sensitivity to threatening stimuli affects Internet addiction. This imply that Internet addiction is somehow different from other risky behaviors; therefore, to prevent and treat Internet addiction, sensitivity to punishment and fear should be considered more important than sensitivity to reward. LA eng UL http://sjimu.medilam.ac.ir/article-1-2572-en.html M3 10.18869/acadpub.sjimu.24.2.119 ER -