Section 1. User-focused cyber behavior. Chapter 1. "They are thirsty for internet more than water": learning and cognitive development among young refugees undergoing migration ; Chapter 2. Adolescents, third-person perception, and Facebook ; Chapter 3. Relationships of smartphone dependence with chronotype and gender in adolescence -- Section 2. Technology-focused cyber behavior. Chapter 4. Automatical emotion recognition based on daily gait ; Chapter 5. Psychological profiles prediction using online social network behavior data ; Chapter 6. A design model of embedded engineering learning on social cloud ; Chapter 7. Brain-computer interface for cyberpsychology -- Section 3. Activity-focused cyber behavior. Chapter 8. Digital behavior change interventions ; Chapter 9. Predicting shoppers' acceptance of e-shopping on the internet ; Chapter 10. Cyberbullying: prevalence, characteristics, and consequences ; Chapter 11. The cyber acumen: an integrative framework to understand average users' decision-making processes in cybersecurity -- Section 4. Effect-focused cyber behavior. Chapter 12. Deviant pornography use: linkages to individual differences and early-onset adult pornography use ; Chapter 13. Adolescent victim experiences of cyberbullying: current status and future directions ; Chapter 14. Cyber-victimization and cyber-aggression: personal and situational factors.