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Neurovis: Visualizing brain signals in 3D in real-time

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Re: Neurovis: Visualizing brain signals in 3D in real-time

#5
post #4

NeuroVIS is just amazing.

Is it? It looks like something you could code up in a few weeks.. just take a random brain model, make it semi translucent, then map the data inside of the model to a continuous 3d smoothed grid, and voila

I'm not an eeg guy, but do fMRI. The little video on the site did not give me an indication of what makes it notable or useful. Eeg researchers create heat maps all the time over electrode points. They also look at timeseries on those electrode points.

Edit: I guess tht focus is on presenting the data as it is collected. Not sure if that is novel or not, but that is more specific than I thought at first.

Re: Neurovis: Visualizing brain signals in 3D in real-time

#6
The consumer grade EEG's you would use for this, like Open BCI, place rudimentary sensors on the scalp. There just isn't enough information from these types of sensors to give you a real look at what signals are occurring in the brain. This is a fundamentally flawed premise and is nothing more than a toy. Real brain research must be done with FMRIs or much more accurate EEG's than consumers have access to, and institutions with such advanced tech already have vis software.

Re: Neurovis: Visualizing brain signals in 3D in real-time

#8
Interesting but I think Heart is more ok. Brain? Imagine you put a eeg and ecg in an alphago neural network and looked at the heat map. Any use? That is not even close to the 100 billion plus Neuton we have. Wonder. But the graphic especially the heart is interesting.

Re: Neurovis: Visualizing brain signals in 3D in real-time

#9

The consumer grade EEG's you would use for this, like Open BCI, place rudimentary sensors on the scalp. There just isn't enough information from these types of sensors to give you a real look at what signals are occurring in the brain. This is a fundamentally flawed premise and is nothing more than a toy. Real brain research must be done with FMRIs or much more accurate EEG's than consumers have access to, and instit…

What is the most advanced open source solution to the brain computer interface issue? Afaik they had gotten pretty good at decoding even the low sensor density data into actionable input, but all solutions suffer from input/compute lag.

So that said, FMRI's won't work for realtime will it due to how long scans take? So EEG's seem to be the only choice. Perhaps to make up for accuracy you have to increase sensor density enough and you should get a system thats fairly accurate. My guess is that most modern attempts have poor sensor density.

Re: Neurovis: Visualizing brain signals in 3D in real-time

#10

The consumer grade EEG's you would use for this, like Open BCI, place rudimentary sensors on the scalp. There just isn't enough information from these types of sensors to give you a real look at what signals are occurring in the brain. This is a fundamentally flawed premise and is nothing more than a toy. Real brain research must be done with FMRIs or much more accurate EEG's than consumers have access to, and instit…

What is the most advanced open source solution to the brain computer interface issue? Afaik they had gotten pretty good at decoding even the low sensor density data into actionable input, but all solutions suffer from input/compute lag. So that said, FMRI's won't work for realtime will it due to how long scans take? So EEG's seem to be the only choice. Perhaps to make up for accuracy you have to increase sensor densi…

And part of the reason EEGs have poor sensor density is that attaching and removing them is a pain in the ass, especially if you have long hair.

I participated in a study where my EEG was taken while I watched some random videos, and half the time was spent on putting enough conductive gel in my hair below the sensors to get a stable signal, and afterwards I had to shower to get rid of the stuff.

There was a bald guy in the study who amazed everyone when he could just put on the cap to get a signal, so EEG might work as brain-computer interface for some people. But for the general population, it's just too much of a hassle.

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