Communication through coherence by means of cross-frequency coupling

" It is reasonable to assume that if the coupling between brain rhythms of different frequencies aids long-range communication, it should also influence inter-regional phase coherence. To address this possibility, in the present work we designed a signal analysis metric to assess if the phase synchrony of fast oscillations (i.e., gamma) recorded in different regions is modulated by the phase of slower rhythms (i.e., theta). By applying this tool, we find that the phase of theta waves influences fast gamma (100 – 150 Hz, also called high-frequency oscillations) synchronization across the neocortex during REM sleep. These results suggest that the phenomena of CTC and CFC may be part of the same mechanism for efficient long-range communication." {Credits 1}

{Credits 1} 🎪 Gonzalez, J., Mondino, A., Cavelli, M., Rubido, N., Tort, A. B., & Torterolo, P. (2020). Communication through coherence by means of cross-frequency coupling. bioRxiv. © 2020 The Author(s). This article is licensed under a CC BY-NC-ND 4.0 International License.