1. Activation of the ventral and dorsal striatum during cue reactivity in Internet gaming disorder.
- Author
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Liu, Lu, Yip, Sarah W., Zhang, Jin ‐ Tao, Wang, Ling ‐ Jiao, Shen, Zi ‐ Jiao, Liu, Ben, Ma, Shan ‐ Shan, Yao, Yuan ‐ Wei, and Fang, Xiao ‐ Yi
- Subjects
GAMING disorder ,COMPULSIVE behavior ,DRUG addiction ,STIMULUS & response (Psychology) ,BRAIN physiology ,BASAL ganglia ,INTERNET ,RESEARCH funding ,TELENCEPHALON ,VIDEO games ,PROMPTS (Psychology) - Abstract
Studies conducted in drug addiction suggest a transition in processing of drug-related cues from the ventral to the dorsal component of the striatum. However, this process has not been studied in a behavioral addiction. Assessment of this process in a non-drug addiction can provide insight into the pathophysiology of both substance and behavioral addictions. Thirty-nine male Internet gaming disorder (IGD) subjects and 23 male matched healthy controls (HCs) participated in functional magnetic resonance imaging during performance of a cue-reactivity task involving alternating presentation of Internet gaming-related stimuli (game cues) and general Internet surfing-related stimuli (control cues). Cue-induced neural activations in the ventral and dorsal striatum (DS) were compared between IGD and HC participants. Associations between cue-reactivity within these regions and cue-induced craving and severity and duration of IGD were also explored. IGD participants exhibited higher cue-induced activations within both the ventral and DS when compared with HCs. Within the IGD group, activity within the left ventral striatum (VS) was correlated negatively with cue-induced craving; positive associations were found between activations within the DS (right putamen, pallidum and left caudate) and duration of IGD. Cue-induced activity within the left putamen was negatively associated with right VS volumes among IGD participants. Consistent with studies in substance addictions, our results suggest that a transition from ventral to dorsal striatal processing may occur among individuals with IGD, a condition without the impact of substance intake. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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