This study simultaneously measured brain activity, physical activity, and physiological signals to analyze dynamic synchronization phenomena between individuals. We examined creative verbal and non-verbal interactions in various contexts, focusing on synchronization across multiple modalities (brain, body, and physiology), their temporal dynamics, and interrelationships. The analysis clarified how these synchronizations impact group creativity, subjective experiences, and cooperative behavior. Additionally, in response to the COVID-19 pandemic, we developed technologies for remote synchronization evaluation, thus opening pathways for applications in educational settings and corporate environments. These advancements demonstrate the potential to enhance learning outcomes and improve communication effectiveness in face-to-face, remote, and hybrid scenarios.