A new hairlike electrode for long-term, high-quality EEG monitoring
15 comments
·May 6, 2025amelius
Isn't that circular pad the electrode, and the "hair" just the lead which can be replaced by any copper wire?
mmastrac
Terrible headline. The single hair-like electrode outperforms the connection performance (longevity/signal to noise) of a single electrode from a 21-lead EEG.
dn3500
It's not just the headline. "... a single electrode that looks just like a strand of hair and is more reliable than the standard, multi-electrode version." "The researchers tested the device’s long-term adhesion and electrical performance and compared it to the current, standard EEG using multiple electrodes."
I read the story three times and I'm still confused. But I'm sure you're right, and I think it's the author who's confused.
hinkley
My second mental image was an alligator clip connected to a hair on a person’s head.
y-curious
https://www.psu.edu/news/research/story/future-brain-activit...
Better link from Penn State. My reading of this seems to suggest that these electrodes are better than the standard one, NOT that one electrode is better than 24 leads.
tomhow
OK, thanks, we’ve changed the URL to this from https://newatlas.com/medical-devices/3d-printed-hairlike-eeg....
Euphorbium
[flagged]
psunavy03
That's not what an EEG is, and they have been around for decades.
BriggyDwiggs42
Did they read and write brain signals with AI? What would the goal of that even be?
dmos62
Presuming a higher bandwidth interface than what we currently have (voice/text chat).
postalrat
Many Black Mirror episodes explore this.
BriggyDwiggs42
The brain machine interface concept seems very useful. My question is the AI part. Aside from the machine learning likely needed to decode brain signals meaningfully at all, why would we want to hook up something with any resemblance to current AI to a brain directly?
This is actually an improvement on the lead electrode technology, making them smaller and improving the scalp adhesion for better fidelity. Ostensibly, you would still need an array of them for medical diagnoses, like isolating and/or monitoring a seizure to a particular portion of the brain.