A device I’ve not seen previously. Looks to be simple to understand and well-crafted. Will have to wait for the Redditors to take it apart to know what’s inside. Looks like a one man operation, Claude Barreto. Reasonably priced as well. Interesting that you have to agree to the Terms and Conditions of Sale before you can get to the order form. I’m intrigued by the dual electrode option. That one could apply tDCS to two locations simultaneously is, I think, new for any of the DIY-level tDCS devices. [I am not affiliated with this or any other device mentioned on the site.]
Can’t vouch for the veracity of this diagram, but I like the format of the information and hope we can evolve a useful diagram that would also track (link to) specific tDCS studies that confirm the relationship of electrode-placement/brain-function. Via Reddit User cellavy
The first type of meditation I practice is the standard “focus” meditation that is taught on headspace.com, and there are great walk-throughs there. I use tDCS to calm the conscious mind by placing the cathode on FpZ the center of the forehead and the anode at OZ center of the back of the head. I do this montage for 5–10 minutes, then remove the electrodes and meditate, focusing on my breath, for 10–15 minutes. I usually do this in the morning, and afterwards, I usually place the anode at FpZ and cathode on upper left arm and run the current for another 5–10 minutes. I find this is helpful in getting into work mode.
via tDCS + Meditation — tDCS and Neurodynamics — Medium.
Exactly! Erica and Jeff have decided on a self-testing protocol I believe will effectively measure their tDCS results. Dual N-Back (online requires Silverlight) or download Brain Workshop.
By the time you read this there should also be a video interview at the TechKnow site.
Jeff’s (Boinger) Open tDCS: tDCS Regulation Circuits – Open Source Hardware project on GitHub: https://github.com/boinger/tdcs
Jeff’s DIY part list: https://github.com/boinger/tdcs/blob/master/bom.csv
And PCB board: https://github.com/boinger/tdcs/blob/master/board.png
Follow Jeff’s Reddit thread.: http://www.reddit.com/r/tDCS/comments/2hguka/experimenting_with_electricity_interview_from/
TechKnow: How do you plan on measuring your progress with the tDCS headset?
Erica: So I’m using a brain training game called Dual N-Back. So far I’ve tracked my progress with the game without using the tDCS, and I plan to use tDCS, and then practice the game and see how far I can get.
TechKnow: Are you going to record this information? Do you plan on making it available to other people?
Erica: I plan to track the amount of time I’m spending using tDCS and how well I’m performing in the game to see what is correlated.
via Experimenting with electricity | Al Jazeera America.
My sense is that the author’s experience is very similar to that of most tDCS DIYers – an initial flurry of interest followed by frustration at not knowing if ‘it’s working’. That’s why it’s exciting to see easily replicated protocols for self-testing emerging around the Dual N-Back game that is available for free. http://brainworkshop.sourceforge.net/download.html
A device mentioned in the article is J.D. Leadam’s ‘Brain Stimulator’ http://thebrainstimulator.net (No affiliation)
We’d decided to try the “accelerated learning” montage that had been developed and tested by DARPA. The best test of the device we could come up with was to play Nintendo Wii Mario Kart while brain zapping for 20 minutes — our performance seemed easily measurable (we would just play the same course, over and over) and a lot less violent. At first I was miserable, my green dinosaur avatar, Yoshi, falling off the track on every hairpin turn and barely finishing the course in 3:30. By the end, though, I was cracking 3:00. Of course, there was no control here, no way to tell whether I was simply learning a new skill, but I was cautiously optimistic.
In the weeks that followed, I stuck to it, undertaking 20 minutes of tDCS four to five days a week. I decided to try to teach myself interactive web design, and whenever I’d run the current through my brain, I’d accompany it with 20 minutes on Code Academy, the teach-yourself-to-code megasite. But after a few weeks, the results I was looking for seemed elusive. I was obviously getting better at coding, but there was no way for me to know what role the electricity was playing. And it was still kind of painful. So I quit, and about two months after visiting Bikson’s lab, my tDCS device is gathering dust on a shelf in my office.
via I want to be your neuroscience experiment | Al Jazeera America.
Podcast: Download (Duration: 23:15 — 32.1MB)
Jesse interviews Nathan Whitmore, creator of the open-source project OpenBrainStim, an affordable alternative to commercial transcranial Direct Current Stimulation (tDCS) devices. Nathan tells us how the project got started, how the “DIY-tCDS” community has grown, and how you can experiment from the comfort of your own home.
via Do-It-Yourself Transcranial Direct Current Stimulation – Smart Drug Smarts.
Brent Williams of SpeakWisdom just published a checklist for DIY tDCSers. Links at bottom to full list.
DIY tDCS Safety Standards
As a potential or current do-it-yourself tDCS user I agree to the following:
1. I will, if reasonably possible, seek out a medical professional for tDCS advice, treatments and follow-up.
2. If I have cranial scar tissue, an implant, or other unusual medical condition, I will seek clearance from my doctor before using tDCS. If I have a seizure disorder I will refrain from using tDCS or use it only under direct supervision of qualified medical personnel.
3. I will not, under any circumstances, directly connect a battery to my head. I understand that I could greatly exceed the maximum 2 mA current limit used by tDCS researchers, possibly harming myself in the process.
via DIY tDCS Safety Standards | SpeakWisdom.
Jared Seehafer wearing his homemade tDCS device.
Courtesy of Amy Standen
That’s what Jared Seehafer did. He’s a 28-year-old medical device consultant in San Francisco who heads the group.
He made his own tDCS machine using an elastic headband and a couple of electrodes. It’s powered by a 9-volt battery and produces 1 to 2 milliamps of electricity, approximately what it takes to light one small LED bulb.
via Hacking The Brain With Electricity: Don’t Try This At Home : Shots – Health News : NPR.
Regarding the transients at turn on, that is a circuit issue. So to remedy, it is easy to add an LC filter at the output see picture below for new schematic. The LC filter acts to dampen any transients. Bench testing shows the ramp up to be 500ms, which is plenty to dampen any turn on pulses, but unfortunately not enough to prevent any flash that occurs with certain montages. At mouser.com, the L can be 22R105C and the C can be UKL1E100KDDANA.
via Insight, a growth project driven by tDCS: A little less Simple DIY TDCS circuit using CRDs.