Related Experiment Video
Updated: Jan 2, 2026
06:01
Transcranial Direct Current Stimulation for Online Gamers
Published on: November 9, 2019
8.5K
Addiction severity modulates the precuneus involvement in internet gaming disorder: Functionality, morphology and
Guang-Heng Dong1, Min Wang2, Ziliang Wang3
1Center for Cognition and Brain Disorders, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang Province, China; Zhejiang Key Laboratory for Research in Assessment of Cognitive Impairments, Hangzhou, Zhejiang Province, China.
Progress in Neuro-Psychopharmacology & Biological Psychiatry
|December 3, 2019
Summary
Addiction severity in internet gaming disorder (IGD) is linked to precuneus brain activity, volume, and connectivity. Higher severity correlates with increased precuneus activation and volume during cue exposure.
Area of Science:
- Neuroscience
- Psychiatry
- Addiction Research
Background:
- The precuneus shows variable activation in addiction studies during cue exposure.
- Understanding precuneus involvement in internet gaming disorder (IGD) is crucial.
Purpose of the Study:
- To investigate the relationship between IGD severity and precuneus involvement.
- To examine functional, morphological, and connectivity aspects of the precuneus in relation to IGD severity.
Main Methods:
- Recruited 65 subjects with IGD.
- Collected brain responses during a gaming cue-craving task.
- Assessed brain structure, precuneus volume, and connectivity.
Main Results:
- IGD severity positively correlated with precuneus activation during cue exposure.
- IGD severity positively correlated with precuneus volume and hippocampal gyrus to precuneus connectivity.
- IGD severity negatively correlated with middle frontal gyrus to precuneus connectivity.
Conclusions:
- In IGD, severity is associated with precuneus functionality, morphology, and connectivity.
- The precuneus may integrate executive control information with craving signals.
- Findings highlight the precuneus's role in the neurobiology of internet gaming disorder.
Related Concept Videos
01:15Drug Abuse and Addiction: Pharmacological Phenomena
1.0K
Drug dependence, abuse, and addiction are complex phenomena that can precipitate various abnormal states. Physical dependence refers to a state of pharmacological adaptation to a drug. This adaptation often results in tolerance—a reduced response to the drug after repeated administrations. When the drug use is abruptly stopped, withdrawal symptoms occur due to the body's need to readjust from the pharmacologically induced imbalance. However, tolerance and withdrawal symptoms do not...
1.0K
01:30Attention-Deficit/Hyperactivity Disorder
684
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
684
01:24Substance Use Disorders Affecting Sleep
343
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
343
01:17Drug Dependence
1.5K
Medications are typically administered to achieve therapeutic effects. Some drugs can modify an individual's mood and perception, frequently resulting in various enjoyable experiences. However, this can result in drug dependency, a condition marked by continuous drug use despite potential negative consequences. Drug dependency primarily falls into two categories: psychological and physical dependence. Psychological dependence occurs when the pleasurable feelings induced by the drug...
1.5K
01:27CNS Depressants: Alcohol and Nicotine
949
Ethanol, a clear colorless alcohol, has been consumed by humans for millennia, but its effects on the body are far from benign. At lower doses, it induces decreased inhibitions and loquaciousness, leading to its social appeal. However, it can cause severe consequences at higher doses, such as coma and respiratory depression, due to its zero-order elimination kinetics. Chronic ethanol abuse wreaks havoc on multiple organ systems, particularly the CNS and the liver. Abrupt cessation of ethanol...
949
01:27Diagnostic and Statistical Manual of Mental Disorders (DSM)
796
The Diagnostic and Statistical Manual of Mental Disorders (DSM) serves as the primary classification system for mental health disorders, providing standardized diagnostic criteria for clinicians and researchers. First published by the American Psychiatric Association (APA) in 1952, the DSM has undergone several revisions to reflect evolving psychiatric understanding. The fifth edition, DSM-5, released in 2013, introduced key updates that expanded diagnostic categories and modified diagnostic...
796