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Gabe Newell on brain-computer interface technology

tvnz.co.nz

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Re: Gabe Newell on brain-computer interface technology

#3
All the talk of implants makes me wonder what's possible without a direct physical link to the brain. Like using an EEG to measure brain signals and transform them into instructions, images, etc. Here's some research where they use the EEG to train a model that reconstructs what people are seeing in their visual cortex [0]

All the reconstructions are super low resolution, but I wonder how much better they can get? I'd be much more open to brain-computer interfaces if it didn't involve drilling through my skull.

[0] https://scitechdaily.com/image-reconstruction-from-human-bra...

Re: Gabe Newell on brain-computer interface technology

#4
post #3

All the talk of implants makes me wonder what's possible without a direct physical link to the brain. Like using an EEG to measure brain signals and transform them into instructions, images, etc. Here's some research where they use the EEG to train a model that reconstructs what people are seeing in their visual cortex [0] All the reconstructions are super low resolution, but I wonder how much better they can get? I'…

Tangentially related, but I wanted to post an article and a paper.

I remember hearing way back around 2010 that Valve was messing around with BCI's. Valve has as recently as 2019 talked about EEG's and gaming [0]. Also recall reading about similar concepts over a decade ago. [1]

[0] https://venturebeat.com/2019/03/24/valve-psychologist-explor...

[1] https://vpa.sabanciuniv.edu/phpBB2/vpa_views.php?s=4&serial=...

Re: Gabe Newell on brain-computer interface technology

#5
post #3

All the talk of implants makes me wonder what's possible without a direct physical link to the brain. Like using an EEG to measure brain signals and transform them into instructions, images, etc. Here's some research where they use the EEG to train a model that reconstructs what people are seeing in their visual cortex [0] All the reconstructions are super low resolution, but I wonder how much better they can get? I'…

Most if not all of the very interesting signals are in the 100hz - 10Khz range. These signals are also very low voltage so. Add in that the skulls acts as a low pass filter and you end up in a situation where you just will not be able to recover the information needed to decode what the brain is doing at the required resolution.

You can use ECoG which is like EEG but placed on under dura-mater (a protective bag around the brain) but this is also highly invasive. Also the spatial resolution is pretty bad. You can get a hundred or so sensors in a few square centimeters.

Re: Gabe Newell on brain-computer interface technology

#7
post #3

All the talk of implants makes me wonder what's possible without a direct physical link to the brain. Like using an EEG to measure brain signals and transform them into instructions, images, etc. Here's some research where they use the EEG to train a model that reconstructs what people are seeing in their visual cortex [0] All the reconstructions are super low resolution, but I wonder how much better they can get? I'…

I have an OpenBCI headset that I have been messing with. Signal is definitely noisy, but they've been able to get a degree of mind control working, like flying little helicopters.

Re: Gabe Newell on brain-computer interface technology

#8

big fan of his point that the technology is moving so fast that it doesn't make sense to lock-in and go mass market yet

This sounds like the spaceship problem. Whenever you build a spaceship to take people to another planet, it will be passed by a later ship which was built to go faster.

Re: Gabe Newell on brain-computer interface technology

#9
This scares me a bit.

Let's say you have certain nero indicators which indicate person X may do Y .

Do you we then minority report lock up people.

At the same time , it's going to be amazing for people in a coma or unable to communicate. We could have a fantastic amazing world, where we effectively live forever via some type of matrix like interface.

Re: Gabe Newell on brain-computer interface technology

#10
I thought that it was interesting that Gabe was using The Matrix as a comparison for BCIs since that movie was a warning about what this kind of tech could bring, but he did express a lot of concern around more real-world ramifications around what this technology could bring if it wasn't properly used or secured. What he was describing then reminded me more of the movie Strange Days where people would use neural connectors to record and play back experiences from others, but amplifying the signal too much would result in scrambled neurons.
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