Problematic internet use is associated with structural alterations in the brain reward system in females

Autor: Sámuel Komoly, Attila Schwarcz, Réka Horváth, Szilvia Anett Nagy, Zsófia Clemens, Norbert Kovács, Anna Altbäcker, Gergely Orsi, Gábor Perlaki, Gergely Darnai, Enikő Plózer, Péter Bogner, József Janszky
Rok vydání: 2015
Předmět:
Adult
medicine.medical_specialty
Adolescent
Cognitive Neuroscience
media_common.quotation_subject
Grey matter
Pattern Recognition
Automated
Young Adult
03 medical and health sciences
Behavioral Neuroscience
Cellular and Molecular Neuroscience
Reward system
0302 clinical medicine
Reward
Neuroimaging
Surveys and Questionnaires
Neural Pathways
Image Processing
Computer-Assisted
medicine
Humans
Radiology
Nuclear Medicine and imaging
Gray Matter
Psychiatry
media_common
Psychiatric Status Rating Scales
Internet
business.industry
Addiction
Neuropsychology
Brain
Organ Size
Voxel-based morphometry
Middle Aged
030227 psychiatry
Behavior
Addictive
Psychiatry and Mental health
Cross-Sectional Studies
medicine.anatomical_structure
Neurology
Female
Orbitofrontal cortex
The Internet
Neurology (clinical)
Psychology
business
030217 neurology & neurosurgery
Clinical psychology
Zdroj: Brain Imaging and Behavior. 10:953-959
ISSN: 1931-7565
1931-7557
DOI: 10.1007/s11682-015-9454-9
Popis: Neuroimaging findings suggest that excessive Internet use shows functional and structural brain changes similar to substance addiction. Even though it is still under debate whether there are gender differences in case of problematic use, previous studies by-passed this question by focusing on males only or by using gender matched approach without controlling for potential gender effects. We designed our study to find out whether there are structural correlates in the brain reward system of problematic Internet use in habitual Internet user females. T1-weighted Magnetic Resonance (MR) images were collected in 82 healthy habitual Internet user females. Structural brain measures were investigated using both automated MR volumetry and voxel based morphometry (VBM). Self-reported measures of problematic Internet use and hours spent online were also assessed. According to MR volumetry, problematic Internet use was associated with increased grey matter volume of bilateral putamen and right nucleus accumbens while decreased grey matter volume of orbitofrontal cortex (OFC). Similarly, VBM analysis revealed a significant negative association between the absolute amount of grey matter OFC and problematic Internet use. Our findings suggest structural brain alterations in the reward system usually related to addictions are present in problematic Internet use.
Databáze: OpenAIRE
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