PSYCHOLOGY OF SOCIAL BEHAVIOR AND GROUP DYNAMICS

Abstract

The psychology of social behavior and group dynamics studies how individuals think, feel, and behave in group contexts. This chapter explores group dynamics by integrating theoretical foundations, psychological mechanisms, and contemporary challenges. Since the 1990s, research has expanded to include cross-cultural differences, migration impacts, social identity formation, and organizational citizenship behavior. Core theoretical frameworks, particularly the social identity approach, have revolutionized our understanding of crowd behavior, collective action, and social influence. Self-categorization theory explains how group membership shapes individual behavior through norms, identification, and group leadership. Research shows that local norms often influence behavior more strongly than national-level messaging during health crises. The COVID-19 pandemic highlighted the challenges and opportunities of group functioning under crisis conditions. The shift to virtual environments has revealed gaps in our understanding of online group processes, including trust formation on social media and digital therapeutic interventions. Cross-cultural research has stressed that responses to social pressure vary across cultures. Advances in neuroscience have revealed the biological foundations of social behavior through the “social brain” concept, showing how neural processes underpin moral judgment, trust, and emotional regulation in groups. Effective policy and practice must treat groups as fundamental units of analysis to improve public health, organizational performance, and societal resilience.