Brain correlates of response inhibition in Internet gaming disorder
- PMID: 25047685
- DOI: 10.1111/pcn.12224
Brain correlates of response inhibition in Internet gaming disorder
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.
Keywords: Internet gaming disorder; impulsivity; response inhibition; supplement motor area.
© 2014 The Authors. Psychiatry and Clinical Neurosciences © 2014 Japanese Society of Psychiatry and Neurology.
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