[EEG] open eeg/ocz nia "success"

Anthony Di Franco di.franco at aya.yale.edu
Mon Oct 5 14:23:56 PDT 2009


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)
>>> _______________________________________________
>>> EEG mailing list
>>> EEG at lists.noisebridge.net
>>> https://www.noisebridge.net/mailman/listinfo/eeg
>>>
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