tag:blogger.com,1999:blog-7276377053120174333.post1338800502160679068..comments2024-03-06T23:41:22.520-05:00Comments on EEG Hacker: EEG Electrode Adapter - Version 2Chiphttp://www.blogger.com/profile/10352943033779293161noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-7276377053120174333.post-25381220180413756642016-03-30T01:38:59.306-04:002016-03-30T01:38:59.306-04:00hi this is krishna i am also working on ADS1299 EE...hi this is krishna i am also working on ADS1299 EEG kit<br />i have lots of doubts can u help me if you can please mail me at ksktulasi@gmail.comAnonymoushttps://www.blogger.com/profile/18130696310686875179noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-61435380969345567212014-05-22T06:41:22.801-04:002014-05-22T06:41:22.801-04:00I checked it out. Nice work! Also, thanks for po...I checked it out. Nice work! Also, thanks for pointing out that Plastics1 changed their website. I'll update my links!Chiphttps://www.blogger.com/profile/10352943033779293161noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-61324718890976478612014-05-22T03:08:45.580-04:002014-05-22T03:08:45.580-04:00Hi Chip,
I made mine. Thanks for a great tutorial....Hi Chip,<br />I made mine. Thanks for a great tutorial. Check it out here:<br />http://eegexplore.blogspot.com/2014/05/making-eeg-electrode-adapter.htmlAnonymoushttps://www.blogger.com/profile/05594611727147059236noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-59658504589807360722014-02-19T02:12:17.316-05:002014-02-19T02:12:17.316-05:00Explorer, send me an email so I have your address,...Explorer, send me an email so I have your address, and I'll reply to you and Chip with some photos and descriptions of the velcro saline system I am using. It's simple DIY components. Easier to include photos and working links that way. I use Ag-Ag/Cl because of the InfraLow Frequency protocols I use. Metals drift too much in that range (DC offset movement.) croft attt lightfield dottt com<br /><br />I should perhaps do a web page or blog entry when I have more time.<br />William J Crofthttps://www.blogger.com/profile/02830012893792978824noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-80635120610569089892014-02-18T17:12:49.958-05:002014-02-18T17:12:49.958-05:00Hi William,
Can you share more details about your...Hi William,<br /><br />Can you share more details about your setup of velcro double sided tape head straps with with Ag-Ag/Cl sensors? Explorerhttps://www.blogger.com/profile/16166312360582516469noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-52534360016849506632014-02-18T16:30:34.744-05:002014-02-18T16:30:34.744-05:00Hey, great discussion, folks! I wasn't aware ...Hey, great discussion, folks! I wasn't aware of these products. Cool stuff. Thanks, William, for sharing your knowledge about them. With so little experience with them myself, I can't really comment on those products vs OpenBCI.<br /><br />I also can't really help with letting you know about the expected ship dates for the OpenBCI kickstarter boards. It's all in Joel and Conor's hands at this point. I think that they were saying an April/May delivery in their Kickstarter? I'm not sure. If history is any guide, I'd assume that additional boards will be offered for sale just after the kickstarter commitments are satisfied.<br /><br />Sorry I can't be more help. Thanks so much for this discussion, though. I'd love to hear about your experiences. Maybe you should start your own brain exploration blog!<br /><br />ChipChiphttps://www.blogger.com/profile/10352943033779293161noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-76971818284075720382014-02-18T16:11:47.095-05:002014-02-18T16:11:47.095-05:00Hi William,
Thanks so much for your reply!
Like ...Hi William,<br /><br />Thanks so much for your reply!<br /><br />Like you said, the downside of KT88-1016 is its sample rate, 100 Hz, but I read (from the specs) that the 24 and 32 channel version have 200 Hz sample rate. <br /><br />The biggest advantages of KT88 system are the low cost, large number of channels, and it is medical grade device made by a large Chinese medical device manufacturer for use in Chinese medical hospitals, they might not have the same standard of medical devices used in US, but I would think they have higher quality than most DYI EEG devices found in US. <br /><br />I am by no means downplay the OPENBCI, but to the exact contrast, I want to buy and use the OPENBCI device because it is open source and there are BCI communities who would develop new applications for the OPENBCI device (as oppose to KT88 which has very limited support for third party apps and open source apps) , but I had missed the deadline for Kickstarter funding, and OPENBCI is not returning my inquiry about whether I can still pre-order the device to support OPNBCI, or when I may expect a consumer release of OPENBCI device, which forced me to pursue the DYI route and KT88 route.<br /><br />Any comments and suggestions would be greatly appreciated, and thanks again for your help. Explorerhttps://www.blogger.com/profile/16166312360582516469noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-975559144650979052014-02-18T13:48:57.495-05:002014-02-18T13:48:57.495-05:00Explorer, hi.
I looked at the Contec a couple yea...Explorer, hi.<br /><br />I looked at the Contec a couple years ago. Big downside is it's sample rate, 100 Hz. OpenBCI is running at 250 or 500 Hz.<br /><br />The sensor system you are looking at is 'saline' based, salt solution vs. paste or gel. This is a nice advantage and avoids cleanup mess. This sensor design originally came from Europe where it is popular. You purchase the set of sensors along with a 'cap' system consisting of left right 'endplates' with holes, and elastic straps that stretch between plates across the 10-20 lines. Usually a chin strap also to hold it all down.<br /><br />The sensors have a felt pad that stretches across the top flat round post, held on by an o-ring. You moisten the pad with saline solution, then tuck under the corresponding strap at the desired 10-20 position. Lever-action holds it down in place on the skin.<br /><br />ANY passive sensor system can be used with EEG, as long as you use all of the same metal type, silver in this case. You would also get some silver ear clips, Contec might have those, or there are some decent ones on MVAP, 2 for about $30.<br /><br />I use a saline system myself, with Ag-Ag/Cl sensors. But not with these rubber straps, instead I use velcro double sided tape. I need to put together some photos and web page on this.<br /><br />Cheers,<br /><br />William<br /><br />PS a photo of the cap in place on head,<br />http://www.pamel.hr/index.php/en/proizvodi/eeg-kape-elektrode-pribor/2012-11-05-09-59-48<br />William J Crofthttps://www.blogger.com/profile/02830012893792978824noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-15743350313701672292014-02-18T10:47:46.755-05:002014-02-18T10:47:46.755-05:00I found your blog yesterday and couldn't stop ...I found your blog yesterday and couldn't stop reading until I read the entire blog! For someone with technical ind IT skills who are curious about Neurofeedback, "brain hacking", personal performance enhancement via the neurofeedback technol, your blog is both inspiring and instrumental!<br /><br />There are several cheap Chinese made medical grade EEG systems on ebay, the Contec KT88 series, and the electrodes and lead wires for these machines are very cheap on ebay, I was wondering if they can be used as an alternative to your DYI electrodes:<br /><br />http://www.ebay.com/itm/TEN-PCS-Silver-Plating-EEG-Electrodes-For-CONTEC-KT88-KT88-2400-KT88-3200-/301069734934<br /><br />http://www.ebay.com/itm/like/181307271566<br />Explorerhttps://www.blogger.com/profile/16166312360582516469noreply@blogger.comtag:blogger.com,1999:blog-7276377053120174333.post-8441048879785314182014-02-01T19:46:10.394-05:002014-02-01T19:46:10.394-05:00I'm working on a project of my own for facial ...I'm working on a project of my own for facial muscle EMG and EOG to work along with a pressure sensor and IMU to control a Wii video game. My project will be targeted for my dad who has ALS and is loosing arm/finger strength and currently has no leg or core strength. I love the work that you and others like you (EEGmouse) are doing. I have been interested in this field for a long time, but the time has come and I am being forced to spend my spare time on it. : )<br /><br />I'd love to exchange notes on the ADS1299, although it may be a one way exchange at first! Having your open design has helped me and I have been sharing my design with the people who have assisted me so far.<br /><br />I don't know if you can contact me personally by this comment. If you can't, let me know and I will give you my e-mail address.<br /><br />P.S. My dad has never played a video game in his life, and the only computer he has ever used is an iPad. I was taking some measurements this weekend and he demanded to know what I was doing. He told me "But I don't play video games". I replied "Not yet!" : ) Trying to expand the family activities accomplishable from a chair...<br /><br />Thanks,<br />Granteissughttps://www.blogger.com/profile/05947512452537084967noreply@blogger.com