Re: question about 10-20 map

Never took me off this list yet.....

You's need to get into immortality you guys because it's not moving along
all ok YOUUU need to become a advanced researcher technologist discoverer
organizer like I am and help big job jobs to do ok OKAY, come on. Don't go
back to your stupid electrodes. become a freelancer god for advancing
technology, knowledge, and immortality.

On Thu, Aug 6, 2015 at 12:09 PM, Adam McKenty <[email protected]>
wrote:

> Hello Wikitronic,
>
> The question "What information can I gather from a simple eeg device" is a
> complicated one! Answers range from "not much", to "read the mind of your
> pet dog" (not kidding). There are firm opinions everywhere in between, with
> varying degrees of reliability.
>
> Probably the first question is: what information are you interested in?
> Asking whether you can gather information X with system Y will provide a
> good context for knowledgeable people to give their opinions.
>
> Regarding electrode placement, it depends on the answer to the first
> question. Electrode placement might be different if you're interested in
> neurofeedback vs. BCI vs. sleep tracking, for example. Before you build
> your electrodes into a headband, you might want to try experimenting with
> different locations.
>
> I'm not sure what stage of your development you're at, but if you are
> doing preliminary testing of your electrodes or other parts of the setup
> you may want to start with measuring EKG, if you haven't done so already.
> It's a much stronger signal than EEG, and could make troubleshooting
> easier.
>
> Also, you'd be welcome to start a thread on NeuroBB (http://neurobb.com)
> about your project. I think NeuroBB members would be interested in
> following your progress, and could help out with EEG-related questions.
>
> Cheers,
> Adam
>
>
>
> On 06/08/2015 9:38 AM, wikitronic wrote:
>
> Besides that I am experimenting with using analog switches for the
> electrodes. I'm not sure what the result will be, that's why I say it is
> just an experiment. I may decide it just won't work. If I can make It work
> I could be able to select any 2 of many electrodes for inputs. I'm studying
> the features of the switches and trying to choose the right ones to order.
> If anyone knows a good part number to test that  would be helpful. So far I
> have tested 2 and I have ordered more. Right now I am using a multiplexer
> and grounding the unused electrodes to prevent crosstalk. At least I
> believe that is the issue I'm having. This will not work with my active
> electrodes because I am grounding the output of the electrodes. I am going
> to try using switches instead of a multiplexer. From what I have found
> there are switches with high off isolation. The "T" switch design has
> higher off isolation. Then there are switches that have crosstalk between
> channels. If I can't eliminate that I could go with individual packages. I
> think the active electrodes will improve the switch capability. I don't
> keep my designs secret. I would rather be able to discuss them, unless
> someone wants to talk business.
>
> Thanks
>
> On Thu, Aug 6, 2015 at 10:01 AM, wikitronic <[email protected]> wrote:
>
>> I don't have much of a vocabulary in eeg terms. If ,for example, I want
>> to measure the left temporal lobe,the 10-20 map shows t3 and t5 for that
>> region. A more detailed map shows four locations marked T. Some of the
>> regions are on opposite sides of the head such as o1 and o2. Would T3 and
>> T4 be a valid choice or only t3 and t5 ?
>>
>>
>> What information can I gather from a simple eeg device and where do I
>> place the electrodes?
>>
>> Basically, I'm making a headband/cap for the head and I need to know
>> where to put the electrodes.
>>
>> Thanks,
>>
>
>
>
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