Comments: This study, like other recent fMRI studies on Internet addicts, showed reductions in executive control. Reductions in executive control in addicts indicate a decline in frontal cortex activity. this decline parallels loss of impulse control, and is found in all addictions.
Neurosci Lett. 2011 Jul 20;499(2):114-8.
Dong G, Zhou H, Zhao X.
Department of Psychology, Zhejiang Normal University, PR China. [email protected]
This study investigated the executive control ability of male students with Internet addiction disorder (IAD) by recording event-related brain potentials (ERP) during a color-word Stroop task. Seventeen IAD and 17 male normal university students participated. Behavior results showed that IAD students were associated with longer reaction time and more response errors in incongruent conditions than the control group. ERP results revealed that participants with IAD showed reduced medial frontal negativity (MFN) deflection in incongruent conditions than the control group. Both of the behavioral performance and ERP results indicate that people with IAD show impaired executive control ability than the normal group.
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