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Abstract

Background and aims: Growing concerns about the addictive nature of Internet and computer games led to the preliminary recognition of Internet Gaming Disorder (IGD) as an emerging disorder by the American Psychiatric Association (APA) and the official recognition of Gaming Disorder (GD) as a new diagnosis by the World Health Organization (WHO). While the definition of clear diagnostic criteria for (I) GD represents an important step for diagnosis and treatment of the disorder, potential neurobiological correlates of the criteria remain to be explored.Methods: The present study employed a dimensional Magnetic Resonance Imaging (MRI) approach to determine associations between (I)GD symptom-load according to the APA and WHO diagnostic frameworks and brain structure in a comparably large sample of n = 82 healthy subjects.Results: Higher symptom-load on both, the APA and WHO diagnostic frameworks convergently associated with lower volumes of the striatum.Discussion: The results from this exploratory study provide the first initial evidence for a neurobiological foundation of the proposed diagnostic criteria for (I)GD according to both diagnostic classification systems and suggest that the transition from non-disordered to disordered gaming may be accompanied by progressive neuroplastic changes in the striatum, thus resembling progressive changes in other addictive disorders.Conclusions: The proposed (I)GD criteria in both diagnostic systems were associated with neurostructural alterations in the striatum, suggesting an association with progressive changes in the motivational systems of the brain.

Item Type:	Article
Authors/Creators:	Zhou, X and Wu, R and Liu, C and Kou, J and Chen, Y and Pontes, HM and Yao, D and Kendrick, KM and Becker, B and Montag, C
Keywords:	gaming disorder, MRI, DSM-5, ICD-11, gray matter, internet gaming disorder, striatum
Journal or Publication Title:	Journal of behavioral addictions
Publisher:	Akadémiai Kiadó
ISSN:	2062-5871
DOI / ID Number:	10.1556/2006.2020.00066
Copyright Information:	Copyright 2020 The Authors. Licensed under Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/
Related URLs:	Google Scholar: Pontes, HM
Item Statistics:	View statistics for this item

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