[Cyborg] [EEG] low budget EEG project
josh at felllight.com
Tue Jul 13 12:58:56 PDT 2010
I heard this EEG thing was cool. Perhaps I should come out of my high
voltage/jet engine/Foo Camp/earning a living cave for a weekend and buy
some nice people some coffee.
On Tue, 13 Jul 2010, Kelly wrote:
> I can meet this Sunday if you guys want to.
> On Tue, Jul 13, 2010 at 12:50, Maria Mouk <mariamouk at gmail.com> wrote:
> > im completely new to the group-
> > but would love to learn more about EEGs
> > more specifically the effects of music on our system
> > but really any waveform watch would be informational interesting and new
> > please let me know if anyone is motivated to bring this back =D
> > maria mouk
> > On Tue, Jul 13, 2010 at 11:20 AM, Kelly <hurtstotouchfire at gmail.com> wrote:
> >> For reference in case any readers are not familiar with sleep EEG:
> >> http://en.wikipedia.org/wiki/K-complex
> >> http://en.wikipedia.org/wiki/Sleep#NREM_sleep
> >> It seems to me that it depends what you want to do with your sleep
> >> data. You can probably characterize the transition from wake to sleep
> >> no problem with power spectrum data alone. Stage 2 sleep and waking
> >> alpha are sometimes similar though as far as just the power spectrum
> >> goes, without being able to look for k-complexes and spindles. You
> >> might be able to differentiate k complexes based on voltage though.
> >> Other than eye movement during REM, you shouldn't have too much high
> >> voltage activity once you're actually sleeping.
> >> Given the charts in the first link, it should be possible. I'm
> >> skeptical of their gamma, but the <35Hz data is totally reasonable. I
> >> think that the big win is that it's a fully packaged device already,
> >> with bluetooth/wireless built in. A lot of the hassle with eeg comes
> >> in just tweaking little stuff to get good contact and shield from
> >> noise. Do you know if the Neurosky electrodes are active? I have
> >> trouble imagining they could get that data from passive electrodes.
> >> And if they're active, that's a pretty big win, because active
> >> electrodes are a little bit of a hassle to build. It would probably be
> >> worth trying to hack directly into the connection and get the raw data
> >> if they're active, because then we could harvest readymade active
> >> electrodes... That sounds nice.
> >> You should talk to Andreas, by the way. He's building his own caps from scratch.
> >> I was just thinking earlier today that it's a bummer that doing EEG
> >> for a living has killed my drive to hack it in my spare time. I'm sure
> >> it will reassert itself when I'm not working so much. In theory, EEG
> >> meets on Sundays, but no one goes anymore. I'm not sure how
> >> Sensebridge will fare without Eric. Feel free to rally people to work
> >> on this stuff, Dan. And best of luck.
> >> -Kelly
> >> On Tue, Jul 13, 2010 at 10:20, Dan Brown <danbrown at gmail.com> wrote:
> >>> Similar to what Tracy sent out recently, there are some blog posts
> >>> about using the EEG modules from Neurosky used in toys for collecting
> >>> EEG data:
> >>> http://ericmika.com/itp/brain-hack
> >>> http://webcache.googleusercontent.com/search?hl=en&source=hp&q=cache:http://www.epokh.org/blog/%3Fp%3D298
> >>> Based on these examples, I am planning to build a mindflex+bluetooth
> >>> radio, which I expect to provide the 8 frequency-band strength numbers
> >>> to a bluetooth host, eg a laptop or mobile phone. Fwiw, I am most
> >>> interested in monitoring brain activity during sleep. If anyone is
> >>> interested in this project, let me know and we can set up some times
> >>> to work together at noisebridge.
> >>> It would be even better to get the raw EEG waveform data from the
> >>> device, but I'm not sure if these cheap Neurosky modules are capable
> >>> of sending that data. Anyone have any suggestions about that?
> >>> Dan
> >>> _______________________________________________
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> >>> EEG at lists.noisebridge.net
> >>> https://www.noisebridge.net/mailman/listinfo/eeg
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> >> EEG at lists.noisebridge.net
> >> https://www.noisebridge.net/mailman/listinfo/eeg
> > --
> > Maria Mouk
> > 917-405-4518
> > -documentation-
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Josh Bailey (josh at felllight.com)
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