Impaired executive control and reward circuit in Internet gaming addicts under a delay discounting task : independent component analysis

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2017
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Wang, Yifan
Zhou, Hongli
Lin, Xiao
Zhang, Yifen
Du, Xiaoxia
Dong, Guangheng
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This study utilized independent component analysis to explore the abnormal functional connectivity (FC) in male participants with Internet gaming disorder (IGD). Functional magnetic resonance imaging and behavioral data were collected from 21 healthy controls (HC) and 18 IGD patients when they were performing a delay discounting task. Behavioral results revealed that the IGD patients showed higher delay discounting rates than HC. Two networks were found to be associated with IGD: (1) the executive control network containing the anterior cingulate cortex and the medial and superior frontal gyrus, and (2) the basal ganglia network containing the lentiform nucleus. Comparing to HC, IGD exhibited stronger FC when selecting small and now options. In addition, the delay discounting rates were positively correlated with the modulation of the two networks and the reaction time. The results suggested that the IGD patients have enhanced sensitivity to reward and decreased ability to control their impulsivity effectively, which leads to myopic decision making.

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ISO 690WANG, Yifan, Lingdan WU, Hongli ZHOU, Xiao LIN, Yifen ZHANG, Xiaoxia DU, Guangheng DONG, 2017. Impaired executive control and reward circuit in Internet gaming addicts under a delay discounting task : independent component analysis. In: European Archives of Psychiatry and Clinical Neuroscience. 2017, 267(3), pp. 245-255. ISSN 0940-1334. eISSN 1433-8491. Available under: doi: 10.1007/s00406-016-0721-6
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@article{Wang2017-04Impai-38923,
  year={2017},
  doi={10.1007/s00406-016-0721-6},
  title={Impaired executive control and reward circuit in Internet gaming addicts under a delay discounting task : independent component analysis},
  number={3},
  volume={267},
  issn={0940-1334},
  journal={European Archives of Psychiatry and Clinical Neuroscience},
  pages={245--255},
  author={Wang, Yifan and Wu, Lingdan and Zhou, Hongli and Lin, Xiao and Zhang, Yifen and Du, Xiaoxia and Dong, Guangheng}
}
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    <dcterms:abstract xml:lang="eng">This study utilized independent component analysis to explore the abnormal functional connectivity (FC) in male participants with Internet gaming disorder (IGD). Functional magnetic resonance imaging and behavioral data were collected from 21 healthy controls (HC) and 18 IGD patients when they were performing a delay discounting task. Behavioral results revealed that the IGD patients showed higher delay discounting rates than HC. Two networks were found to be associated with IGD: (1) the executive control network containing the anterior cingulate cortex and the medial and superior frontal gyrus, and (2) the basal ganglia network containing the lentiform nucleus. Comparing to HC, IGD exhibited stronger FC when selecting small and now options. In addition, the delay discounting rates were positively correlated with the modulation of the two networks and the reaction time. The results suggested that the IGD patients have enhanced sensitivity to reward and decreased ability to control their impulsivity effectively, which leads to myopic decision making.</dcterms:abstract>
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