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Cognitive flexibility in internet addicts: fMRI evidence from difficult-to-easy and easy-to-difficult switching situations.

Internet addiction disorder (IAD) has raised widespread public health concerns. In this study, we explored the cognitive flexibility in IAD subjects using a color–word Stroop task. Behavioral and imaging data were collected from 15 IAD subjects (21.2±3.2years) and 15 healthy controls (HC, 22.1±3.6ye... Full description

Journal Title: Addictive behaviors March 2014, Vol.39(3), pp.677-683
Main Author: Dong, Guangheng
Other Authors: Lin, Xiao , Zhou, Hongli , Lu, Qilin
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1873-6327 ; DOI: 1873-6327 ; DOI: 10.1016/j.addbeh.2013.11.028
Link: http://search.proquest.com/docview/1490747311/?pq-origsite=primo
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title: Cognitive flexibility in internet addicts: fMRI evidence from difficult-to-easy and easy-to-difficult switching situations.
format: Article
creator:
  • Dong, Guangheng
  • Lin, Xiao
  • Zhou, Hongli
  • Lu, Qilin
subjects:
  • Adolescent–Physiology
  • Adult–Physiopathology
  • Attention–Psychology
  • Behavior, Addictive–Physiopathology
  • Brain–Physiopathology
  • Brain Mapping–Physiopathology
  • Case-Control Studies–Psychology
  • Cerebral Cortex–Physiology
  • Cognition–Physiopathology
  • Cognition Disorders–Physiopathology
  • Executive Function–Physiopathology
  • Functional Neuroimaging–Physiopathology
  • Humans–Physiopathology
  • Internet–Physiopathology
  • Magnetic Resonance Imaging–Physiopathology
  • Male–Physiopathology
  • Parietal Lobe–Physiopathology
  • Reaction Time–Physiopathology
  • Stroop Test–Physiopathology
  • Temporal Lobe–Physiopathology
  • Young Adult–Physiopathology
  • Attention Shifting
  • Cognitive Flexibility
  • Executive Control
  • Internet Addiction
ispartof: Addictive behaviors, March 2014, Vol.39(3), pp.677-683
description: Internet addiction disorder (IAD) has raised widespread public health concerns. In this study, we explored the cognitive flexibility in IAD subjects using a color–word Stroop task. Behavioral and imaging data were collected from 15 IAD subjects (21.2±3.2years) and 15 healthy controls (HC, 22.1±3.6years). Group comparisons found that IAD subjects show higher superior temporal gyrus activations than healthy controls in switching (easy to difficult; difficult to easy) than in repeating trials. In addition, in difficult-to-easy situation, IAD subjects show higher brain activation in bilateral insula than healthy controls; in easy-to-difficult situation, IAD subjects show higher brain activation in bilateral precuneus than healthy controls. Correlations were also performed between behavioral performances and brain activities in relevant brain regions. Taken together, we concluded that IAD subjects engaged more endeavors in executive control and attention in the switching task. From another perspective, IAD subjects show impaired cognitive flexibilities. •IAD subjects engaged more endeavors in executive control.•IAD subjects engaged more endeavors in attention shifting.•IAD subjects show impaired cognitive flexibilities than healthy controls.
language: eng
source:
identifier: E-ISSN: 1873-6327 ; DOI: 1873-6327 ; DOI: 10.1016/j.addbeh.2013.11.028
fulltext: fulltext
issn:
  • 18736327
  • 1873-6327
url: Link


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titleCognitive flexibility in internet addicts: fMRI evidence from difficult-to-easy and easy-to-difficult switching situations.
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descriptionInternet addiction disorder (IAD) has raised widespread public health concerns. In this study, we explored the cognitive flexibility in IAD subjects using a color–word Stroop task. Behavioral and imaging data were collected from 15 IAD subjects (21.2±3.2years) and 15 healthy controls (HC, 22.1±3.6years). Group comparisons found that IAD subjects show higher superior temporal gyrus activations than healthy controls in switching (easy to difficult; difficult to easy) than in repeating trials. In addition, in difficult-to-easy situation, IAD subjects show higher brain activation in bilateral insula than healthy controls; in easy-to-difficult situation, IAD subjects show higher brain activation in bilateral precuneus than healthy controls. Correlations were also performed between behavioral performances and brain activities in relevant brain regions. Taken together, we concluded that IAD subjects engaged more endeavors in executive control and attention in the switching task. From another perspective, IAD subjects show impaired cognitive flexibilities. •IAD subjects engaged more endeavors in executive control.•IAD subjects engaged more endeavors in attention shifting.•IAD subjects show impaired cognitive flexibilities than healthy controls.
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