Brain waves are a repetition of a pause and an activity

Abstract

Brain waves still cannot reliably distinguish between awake and asleep states. Here, I present new original indices, voltage subthreshold wave $\tau$ and abovethreshold wave burst, for advanced LFP/EEG readings. Assuming that $\tau$ is a microwave that fluctuates every sample such as the equipotential, the total number of $\tau$ ($N\tau$) is inferred to be the maximum, and the amplitude of burst (Abst) is inferred to be the minimum. In fact, they invariably had a mean $\tau$ duration ($M\tau$) of 2-3 sample intervals in any case. In addition, $\tau$ and burst exhibited self-similarity for sample frequency while occupying approximately 30% and 70% of LFP in the natural state, respectively. Its threshold and Abst were correlated with the vigilance state and decreased to 70% by doubling the sample frequency. The dose of sevoflurane, which inhibits and synchronizes neural activity, was linearly correlated with decreases in the threshold and $N\tau$. Thus, $\tau$ could reflect the uncertainty of the membrane potential. I propose that $\tau$ and burst represent a pause and an activity such as the rhythm of the brain.