[Cyborg] [EEG] low budget EEG project

Kelly hurtstotouchfire at gmail.com
Tue Jul 13 13:10:01 PDT 2010


I'll be at NB anyway working on photo stuff.

-Kelly

On Tue, Jul 13, 2010 at 12:58, Josh Bailey <josh at felllight.com> wrote:
>
> 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.
>>
>> -Kelly
>>
>> 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
>> >>> _______________________________________________
>> >>> EEG mailing list
>> >>> EEG at lists.noisebridge.net
>> >>> https://www.noisebridge.net/mailman/listinfo/eeg
>> >>>
>> >> _______________________________________________
>> >> EEG mailing list
>> >> EEG at lists.noisebridge.net
>> >> https://www.noisebridge.net/mailman/listinfo/eeg
>> >>
>> >
>> >
>> >
>> > --
>> > Maria Mouk
>> > 917-405-4518
>> >
>> > -documentation-
>> > -dissemination-
>> >
>> _______________________________________________
>> EEG mailing list
>> EEG at lists.noisebridge.net
>> https://www.noisebridge.net/mailman/listinfo/eeg
>>
>>
>
> --
> Josh Bailey (josh at felllight.com)


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