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Brain Correlates of Response Inhibition in Internet Gaming Disorder

Overview
Specialties Neurology
Psychiatry
Date 2014 Jul 23
PMID 25047685
Citations 39
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Abstract

Aims: The present study aimed to evaluate the brain correlates of response inhibition among subjects with Internet gaming disorder (IGD).

Methods: For this purpose, 15 men with IGD for at least 1 year, and 15 controls with no history of IGD were recruited to perform the Go/Nogo task under functional magnetic resonance imaging investigation. Prior to scanning, the subjects were assessed using the Chen Internet Addiction Scale and the Barrett Impulsivity Scale.

Results: The control group exhibited activation of the right supplement motor area (SMA), dorsolateral prefrontal cortex, and caudate for response inhibition. However, the IGD group had a higher impulsivity and lower activity of the right SMA/pre-SMA in comparison to the control group.

Conclusions: The results obtained suggest that dysfunctional activation of the SMA for response inhibition is one of the candidate mechanisms of IGD.

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