eLife assessment
The authors use human intracranial recordings to investigate the relationship between the power of brain oscillations and the latency and strength of cortico-cortical couplings. In the current version, the authors provide a valuable finding that the delay between nearby electrodes in ECoG data is correlated with the amplitude of power, differently so for high and low frequencies. The findings of this study will interest investigators in the wider field of systems neurophysiology; however, editors and reviewers perceived headroom for improving clarity in the presentation of analyses and results, and the strength of evidence for some of the claims as currently presented was viewed as incomplete.