[alexgmcm]

Have EEG devices improved much in recent years?

I read some books by Nicolelis' several years ago and it seemed back then that really useful BCI's still required invasive surgery because not only do you need to gather signals from a large number of neurons you also need to be able to distinguish them (and in EEG the signals are merged together and then further obscured by the effect of the skull etc.)

It will be interesting to see how much adoption Neuralink can get with the invasive approach.

[wrinkl3]

That's my question as well - does EEG have any compelling everyday use-cases that aren't already covered by a heart rate monitor?

[AussieWog93]

Apart from BCI (which after dropping out a PhD in this field, I am extremely skeptical of), EEG is used to measure things like sleep-wake cycles, as well as predicting seizures in epilepsy patients (which, to be fair, is also not a hugely proven technology). I believe there were also some tests using it to measure level of attention in fighter pilots.

[Goety]

Surgery for brain scanning is disinformation