[EEG] open eeg/ocz nia "success"

Kelly hurtstotouchfire at gmail.com
Mon Oct 5 14:26:35 PDT 2009


Realistically, we could be working on noise reduction and software
NOW.  And I'd like to be, frankly, because it's somewhere I can
actually contribute.  We have eeg data.  We should start playing with
it.  And hopefully soon we'll have better EEG data, and the equipment
to get more whenever we want.

-K

On Mon, Oct 5, 2009 at 2:23 PM, Anthony Di Franco
<di.franco at aya.yale.edu> wrote:
> As mentioned in that email, let me know when you all get to point F,
> noise and software hacks.
>
> On Mon, Oct 5, 2009 at 14:18, Kelly <hurtstotouchfire at gmail.com> wrote:
>> Also, specifically, I think the last time we addressed amplifying the
>> cap is here: https://www.noisebridge.net/pipermail/eeg/2009-June/000075.html
>> There were some hardware concerns that I sorta kinda understand, and
>> Jonathan, maybe you guys have already gotten a handle on this?
>>
>> I would be up for meeting next week if we think that momentum
>> justifies it.  Hopefully other people that know more about the
>> hardware can show up, because I basically sit there and know about
>> brains and ask hardware questions.
>>
>> K
>>
>> On Mon, Oct 5, 2009 at 9:35 AM, Jonathan Foote <jtfoote at ieee.org> wrote:
>>> Hey Josh,
>>>
>>> Welcome! Our group has lost a little momentum so it's great to hear
>>> from new people.
>>>
>>> Our grand plan was to  build a multi-channel rig using multiple
>>> OpenEEG boards. Several of us have built two-channel versions; the
>>> digital motherboard will support up to six (three analog boards). We
>>> have acquired a 19(?) -electrode head cap and Tracy built a nice
>>> enclosure with mini-XLR jacks. We have some neurobiology, signal
>>> processing and machine learning expertise on board, so now I think all
>>> we need to do is to put everything together!
>>>
>>> If you want to, skim the mailing list archives
>>> https://www.noisebridge.net/pipermail/eeg/ and we look forward to
>>> meeting you in person.
>>>
>>> (To the group: I noticed our wiki page either disappeared in the reorg
>>> or never existed, so I made one: https://www.noisebridge.net/wiki/EEG)
>>>
>>> Cheers,
>>>
>>> Jon
>>>
>>>
>>> On Sun, Oct 4, 2009 at 11:56 PM, Josh Bailey <josh at anarkiwi.com> wrote:
>>>>
>>>> What an inspiration it is to have other local enthusiasts. Found I had an
>>>> obsolete motherboard with a real parallel port on it, and lashed it
>>>> together long enough to run Linux off of DVD and run sp12 on it.
>>>>
>>>> Now my openeeg is breathing and I can get a test pattern all the way
>>>> through from the analog board. Nice.
>>>>
>>>> I suppose the next stage is electrodes. Oh well. Back to the day job for
>>>> now.
>>>>
>>>> On Mon, 5 Oct 2009, Josh Bailey wrote:
>>>>
>>>>>
>>>>> Hi all;
>>>>>
>>>>> Am completely new to the group; happy that there are other people local
>>>>> playing with this stuff!
>>>>>
>>>>> Seen some discussion re both OpenEEG and the OCZ NIA.
>>>>>
>>>>> I have an OCZ NIA and have gotten some joy, with some very very hacky code
>>>>> just reading from Linux USB HID "stack" (on taking this guy to pieces it's
>>>>> seems to be just an audio b/w stereo DAC that just streams samples at you
>>>>> all day long):
>>>>>
>>>>> http://casuallethality.com/?p=199
>>>>>
>>>>> I freely admit I have no real clue, but I think I have gotten beta out of
>>>>> it at 28Hz (and a big 60Hz spike where I expect it to be). Perhaps someone
>>>>> with more clue than I would care to venture an opinion as to whether my
>>>>> results are plausible? I'll happily share my code with other OCZ owners
>>>>> (well, anyone really).
>>>>>
>>>>> If I'm going in the right direction figured it might make more sense to
>>>>> record a lot more data (say, overnight), so ICA has something to feed on.
>>>>> Bit challenging with this device as it's only two channels, the electrodes
>>>>> are pretty perspiration sensitive, and the device's grounding SUCKS!
>>>>>
>>>>> Regarding OpenEEG - I have built up both an analog and digital board pair,
>>>>> but I don't have an old Windows box to program the Atmel on the digital
>>>>> board (I'm an all Linux/Mac shop, one has one's principles).
>>>>>
>>>>> I don't suppose anyone would happen to be willing to flash my Atmel so I
>>>>> don't have to buy an old clunker and put Windows on it? Programmer won't
>>>>> work under Vista because of excessive parallel port HAL, and it wants to
>>>>> bit bang - I think - I am not a strong enough Windows guy.
>>>>>
>>>>> Last thing. Friend of mine at the VA is studying whether concussion
>>>>> injuries can be diagnosed by EEG. She keeps claiming to be able to give me
>>>>> some 256-channel recordings - I will follow that up. If it's OK with
>>>>> her/ethics/anonymised and all that will seek permission to obtain and
>>>>> share it (at the very least may be a good control set vs. homebrew).
>>>>>
>>>>> Sorry for the long post,
>>>>>
>>>>>
>>>>
>>>> --
>>>> Josh Bailey (josh at anarkiwi.com)
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>>>>
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