So... can we trigger it manually? I'd love to be able to lay down and press the 'flush brain' button.
It seems likely that you'll get those flushes right after falling asleep, so a nap of a few minutes could help a lot.
In my experience, after a night without sleep even a 30 seconds nap reinvigorates you significantly.
If you have 15m, search this on YT for a guided practice and test it yourself.
However, it is very, very fragile to any kind of interruption, so they stopped looking into it.
The video (?) was related to clearing of plaques from the brain with a view to mitigating Alzheimer's effects.
It was not the NSDR (Non-Sleep Deep Rest) videos a sibling commenter posted.
I'm not convinced that the screen nor the headphones are actually providing the required rates.
In the experiments they appear to use a large (c.1m^2) light box so the patient can watch a video from a tablet placed in the middle.
Reading your link made my brain 'resonate' in an unpleasant way; perhaps an auditory memory of watching the video.
All very interesting.