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Psychiatry Clin Neurosci. 2015 Apr;69(4):201-9. doi: 10.1111/pcn.12224. Epub 2014 Aug 27.

Brain correlates of response inhibition in Internet gaming disorder.

Author information

1
Department of Medical Imaging, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Radiology, Faculty of Medicine, College of Medicine, Kaohsiung, Taiwan.

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

PMID:
25047685
DOI:
10.1111/pcn.12224
[Indexed for MEDLINE]
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