Brain waves form classic bands linked to synchrony and cognition, but can we define them objectively? Power-based methods are useful yet sensitive to the aperiodic background and often recover alpha (sometimes beta). Rhythmicity reveals a wider set of bands, and does so universally. Open toolbox:

Delta, theta, alpha, beta, gamma. The frequency bands of the brain have been textbook knowledge for a century. But what happens in the gaps between them? A new study finds they host a second family of bands, characterized by short-lived, high-power bursts, signaling change. doi.org/10.1038/s414...