Comments: Subjects with Internet addiction needed to “engage in more cognitive endeavors” to complete the inhibition task, and demonstrated lower impulse control – which can be related to hypofrontality.
Neurosci Lett. 2010 Nov 19;485(2):138-42. Epub 2010 Sep 15.
Dong G, Zhou H, Zhao X.
Department of Psychology, Zhejiang Normal University, PR China. [email protected]
We investigated response inhibition in people with Internet addiction disorder (IAD) by recording event-related brain potentials during a Go/NoGo task. Twelve IAD-afflicted and 12 normal university students participated in the study. Results show that the IAD group exhibited lower NoGo-N2 amplitude, higher NoGo-P3 amplitude, and longer NoGo-P3 peak latency than the normal group. The results also suggest that the IAD students had lower activation in the conflict detection stage than the normal group; thus, they had to engage in more cognitive endeavors to complete the inhibition task in the late stage. In addition, the IAD students showed less efficiency in information processing and lower impulse control than their normal peers.
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