The investigators recruited school bullying perpetrators from the age of 12 to 17 by referral from the local police department. An anti-bullying intervention based on cognitive-behavioral therapy (CBT) principles was conducted, and addressed issues related to impulse control, empathy and communication enhancement. All participants completed brain magnetic resonance imaging, neurocognitive tests, and questionnaires before and after the intervention.
The present study included previous perpetrators of school bullying who were convicted for a minor offense, including physical or verbal assaults or theft, and who were referred by the police to participate in an anti-bullying intervention. The program consisted of 8 sessions over 4 weeks and was conducted by a board-certified psychiatrist and a therapist with previous training in psychosocial treatments. The intervention was based on CBT principles and addressed various factors that have been associated with perpetrators of school bullying, including impulse control, perspective taking (empathy), and the enhancement of communication skills. All participants completed the Korean Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime version (K-SADS-PL) administered by board-certified child and adolescent psychiatrists. The validity and reliability of the original and Korean versions of the K-SADS-PL have been established. Intelligence quotient (IQ) was measured using the Korean Educational Developmental Institute's Wechsler Intelligence Scale for Children. Prior to and after participation in the program, all participants underwent brain magnetic resonance imaging (structural and functional) and completed neurocognitive tests that included the continuous performance test (CPT), the Stroop Word and Color Test, and the Wisconsin Card Sorting Test (WCST). The parents of the participants completed questionnaires including the Child Behavior Checklist (CBCL). Written informed consent was obtained from the parents and the participants after sufficient explanation of the study. The study protocol was approved by the institutional review board of the Seoul National University Hospital.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
27
The title of each session were as follows : 1. Introduction of intervention and setting rules, building rapport 2. Understanding school bullying (The definition of school bullying and proper coping strategies) 3. Empathy of others ( Practice of understanding victims of school bullying) 4. Impulse control 1 (Understanding my anger patterns, finding one's true feelings behind that anger) 5. Impulse control 2 (Finding irrational thoughts that lead to anger and correction of them) 6. Conflict management (Understanding one's pattern of dealing with conflicts, finding effective strategies) 7. Communication skills enhancement 8. Increasing self esteem
Brain activity measured by functional magnetic resonance imaging (fMRI)
Time frame: 1 month
Aggression measured by the Child Behavior Checklist based on parent-report
Time frame: 1 month
Cognitive flexibility measured by the Wisconsin Card Sorting Test
Time frame: 1 month
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