Abbreviation	Definition
ADHD	Attention-Deficit/Hyperactivity Disorder
ADHD-RS	Attention-Deficit/Hyperactivity Disorder Rating Scale
AQ	Autism Spectrum Quotient
ASD	Autism Spectrum Disorder
CAT12	Computational Anatomy Toolbox 12
CI	Confidence Interval
DSM-5	Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition
IGD	Internet Gaming Disorder
KAKENHI	Grants-in-Aid for Scientific Research (Japan Society for the Promotion of Science)
MRI	Magnetic Resonance Imaging
NAcc	Nucleus Accumbens
PSU	Problematic Smartphone Use
SPM	Statistical Parametric Mapping
WCST	Wisconsin Card Sorting Test