Skip to main content
OpenTrials
Completed

NCT Number: NCT02550405

The Behavioral and Brain Mechanism of IGD

This project aims to investigate whether anodal tDCS of dlPFC enhances cognitive regulation over craving an emotions.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Internet Gaming Disorder Behavior Behavior, Addictive Compulsive Behavior Impulsive Behavior Internet Addiction Disorder Technology Addiction

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

State Key Laboratory of Cognitive Neuroscience and Learning

Beijing, Beijing Municipality, 100875, China

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Inclusion criteria for IGDs were:
  • a score of 67 or higher on the CIAS;
  • engagement in Internet gaming for over 14 hours per week for a minimum of one year; and
  • reporting of Internet gaming as their primary online activity;
  • Inclusion criteria for HCs were:
  • a score < 60 on the CIAS;
  • never having spent more than 2 hours per week engaged in Internet gaming

Exclusion criteria

  • for all participants:
  • current or history of use of illegal substances and gambling;
  • current or history of psychiatric or neurological illness; and
  • current use of psychotropic medications

Treatment and study plan

Craving behavioral intervention

Behavioral

The CBI was given once a week for 6 weeks, conducted by four therapists. A pair of therapists was randomly assigned to a CBI+ group. Each session included 5 parts in 2.5-3 hours: warming-up exercise, discussion about the homework from the last session, main structured activity, brief summary, and the homework assignment. There were 6 sessions with each focused on a topic: recognize craving and its relationship with IGD; reduce craving through ameliorating the salience of cues and irrational beliefs, withdrawal symptoms and other negative affects; enhance self-monitoring and control for craving through time management training; relieve fulfillment of psychological needs through Internet use and attenuate the relation between craving and gaming behaviors through coping skill training

Other names: CBI

Primary outcomes

  1. Brain resting state functional connectivity as measured by fMRI

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    voxel-wise, ROI-wise, and ICA analyses

  2. Brain activation during a cue-induced craving task as measured by fMRI

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    A paradigm using addictive pictures to induce craving

Secondary outcomes

  1. Brain activation during the Cups task as measured by fMRI

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    Cups task measuring risky decision-making related to potential gains and losses separately

  2. Brain activation during the mixed gambling task tasks as measured by fMRI

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    The mix gambling task measuring decision-making related to loss aversion

  3. Brain structure as measured by structural MRI

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    comparing gray matter and white matter differences between individuals with IGD and healthy controls.

  4. IGD severity measured by Chen Internet addiction scale

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    a 26-item 4-point Likert scale

  5. Craving as measured by brief questionnaire of Internet (gaming) craving

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    a 8-item 7-point Likert scale

  6. Impulsivity as measured by Barratt impulsive scale (BIS-II)

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    a 30-item 4-point Likert scale

  7. weekly online (gaming) time

    Time frame: Detecting changes between two different time points (baseline and 6 weeks)

    self-report,in hours

Sponsors and collaborators

Lead sponsor

Beijing Normal University

Other

Registry information

Official study title

The Behavioral and Brain Mechanism of Internet Gaming Disorder

Important dates

Study start
2012
Primary completion
2014
Study completion
2015
First posted
Sep 15, 2015
Registry last updated
Dec 13, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.