[EEG] low budget EEG project

Maria Mouk mariamouk at gmail.com
Tue Jul 13 13:28:49 PDT 2010


itd be my first visit to noisebridge
so i can be there on sun
just give me a time =D

mm

On Tue, Jul 13, 2010 at 1:10 PM, Kelly <hurtstotouchfire at gmail.com> wrote:
> 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)
>



-- 
Maria Mouk
917-405-4518

-documentation-
-dissemination-



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