Research on the Intervention Effect of Group Sandplay Therapy on Internet Gaming Disorder

INTERVENTION: Intervention group:Restricted group sandplay therapy;Control group:The subjects were free to engage in sandplay activities in the sandplay room; CONDITION: Internet game disorder PRIMARY OUTCOME: Internet Addiction Test;Questionnaire of gaming urge;BOLD fMRI;Brain activation;Self‐Rating Depression Scale, SDS;Self‐Rating Anxiety Scale, SAS; INCLUSION CRITERIA: 1. Chinese nationality; 2. Aged 18‐35 years old; 3. IAT scale (Online Game Addiction Scale) score greater than 50, DSM‐5 score greater than 6, combined with the game history (more than 2 years) and the game time (more than 2 hours/day).