Seven-Band Hierarchical Brain Oscillations: Insights into Cognition and Neural Synchrony

Seven-Band Hierarchical Brain Oscillations: Insights into Cognition and Neural Synchrony The hierarchical organization of brain oscillations underpins neural communication, cognitive processing, and global brain coordination. In this manuscript, we propose a seven- band hierarchical model of brain oscillations, integrating canonical EEG frequency bands with recent evidence on cross-frequency coupling, traveling waves, and systemic resonance. The model provides a comprehensive conceptual framework for experimental validation, computational modeling, and potential clinical translation (Al-Olofi, 2025).