I work in neurotech and specifically with EEG, some would find it surprising that I 100% agree with this take.
When we understood the world of fluid-dynamics, we looked at the body as blood going through a pump delivering materials (oxygen, minerals, etc) to different parts of the body. We though to ourselves "we know how this works!".
Then we discovered electricity, slapped our collective foreheads and said "oh! It's electrical!" now I get it.
We still don't.
Let's learn what we can from what we can and use this knowledge to our benefit, but let's not assume we understand the underlying mechanisms just because we can find correlations.
Idk… I follow EEG science pretty closely now that the BCI industry is exploding post-DL, and this seems like a very accurate title.
Inner workings are indeed being uncovered; what would that look like, if not this…? We’re not going to find, like, a blueprint hidden in there somewhere with marginalia from god. Spiral and concentric brainwaves sound pretty damn compelling and specific, not just a tweak of our definition of noise in this data.
A better piece of evidence is that this is quanta. I’ve literally never seen a sensationalist or inaccurate or less than fascinating article make it to their site. I’m gonna need a ton more critique from randos on HN to seriously consider that this might be the first.
BTW, hug your loved ones, y’all. EEG has been mostly bunk applications for consumers/non-scientists for years, like “biofeedback” therapy, but we are now extremely likely to see the first polygraph that actually works in our lifetimes, not to mention all the other crazy shit. Imagine how seriously things change when every government can load a truth-telling helmet into every cop car :(
On the upside it’ll make for some wild HCI someday, perhaps, if we make it that far. The scene from Westworld S04 (my favorite piece of lost media) with Dolores creating a 3d narrative world with words and gestures that matches what she’s envisioning comes to mind, for one thing… the dream.
wow, they made a forth session of West world...?
>also are an avenue for bunk pseudosccience so it pays to be careful whenever you see the words 'brain waves' paired with some large claim.
What makes you make such an accusation?
And still all slow stuff, 4 to 12 Hz. There must be something in the brain that clocks faster, but nobody seems to have found it yet.
It's way out of my area of expertise, but my suspicion is that all these 4-12 Hz waves bouncing around in a 3D structure may be interfering to produce signals that tick much faster, and some functionality of the brain is clocked on that.
There's this thing called "scissor effect", where when you have two wavefronts colliding at an angle, you get an apparent wave that moves much faster than either of the input waves - if you do that with light, you can trivially exceed the speed of light. Now this isn't an information-carrying wave, but I believe you can still use this phenomenon as a "virtual clock", to synchronize a bunch of independent receivers to act on a frequency faster than the real, interfering clock signals.
Well, that, or the brain is just such a mess that it acts as a spread-spectrum source and none of the high frequencies are above the noise floor.
EDIT: and of course a little background research after writing this comment revealed it's already settled (through more invasive probing) that the human brain has elements operating in kilohertz range - the mystery isn't whether this happens, but how it adds up to cognition and consciousness.
There are faster waves than that, but the brain just doesn't seem to be fully synchronous. It doesn't have to have a fast "clock tree" if a lot of the low timescale activity is inherently async.
It's not at all how humans build computational devices. But humans run digital signals at gigahertz rates and do intelligent design. Nature doesn't do either.
I suspect that there are numerous advantages to silicon computation that biological neurons can't touch, but the brain is no slouch either - it was optimized for millions of years to be good for what it does. It's very good at what it does - sometimes because of, and sometimes despite its architecture.
It's honestly amazing that the brain even works as well as it does, given how slow neurons are. I suspect that distributed population coding that seems to be endemic to neural networks can also serve as a workaround for neurons being unreliable, slow to recover and subject to fatigue.
What makes you think that a clock-timing analogy even applies to brains doing work?
I wouldn't be so sure that the brain necessarily clocks faster than that. I think it's more likely that faster chains of thought are defined by the flow of the waves rather than their frequency.
Seems to be pretty much in line with human reaction times?