DIY tDCS Start Here

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New to DIYtDCS? This is the ‘start here’ collection of articles and posts.

  1. DIYtDCS Feed, all articles http://www.diytdcs.com/feed/
  2. My Twitter feed focuses on breaking tDCS research. @DIYtDCS
  3. My Reddit account, where it’s okay to explore the fringes. DIYtDCS
  4. Recommended device? (29V / 2mA model. Promo code ‘diytdcs’ for discount)
  5. Best instruction video for C3/Motorcortex & F3/DLPFC electrode placement.
  6. Is this (tDCS for depression in pregnancy) the first ‘killer app’?
  7. Cognitive Enhancement with Noninvasive Brain Stimulation (video) Roy Hamilton MD
  8. Simple Montage list with electrode placement and research sources.
  9. Marom Bikson & Peter Toshev ‘Your Electric Pharmacy‘ (excellent overview/intro).
  10. Marom Bikson Presentation on State of the Art tDCS 8/13.
  11. My podcast interviews – deep dives into tDCS with key players (iTunes link)
  12. tDCS SubReddit is where the action is. Now with tDCS FAQ!
  13. An ‘Open tDCS’ project.
  14. Dr. Brent Williams’ DIY device and protocol.
  15. Zap your brain into the zone: Fast track to pure focus
  16. Better Living Through Electrochemistry
  17. Clinical tDCS trials seek volunteers. All. Search. (Example: “tDCS AND Los Angeles”)
  18. Neuroscience: Brain buzz Nature Magazine
  19. DLPFC / F3 Locator (you’ll need a tape measure with Centimeters)
  20. Searchable database of tDCS articles from trans-cranial.com
  21. 10–20 international system
  22. Kadosh The Stimulated Brain: Cognitive Enhancement Using NIBS

Is e-meditation wave of the future? | MUSC News

Full article: Is e-meditation wave of the future?

Neuroscience doctoral student Bashar W. Badran is exploring the Use of tDCS to enhance Mindfulness Meditation (E-Meditation)
MUSC Research Assistant Caroline Summer is in background, demonstrating the tDCS device.
Photo by Sarah Pack

Badran, who used two different mindfulness scales and mood rating scales on 15 participants in a double-blind study, found that feelings of calmness increased almost 2.5 times in the group receiving active tDCS-paired meditation compared to the placebo. Individuals receiving the sham stimulation had just a 5 percent increase in calmness rating.

Treating Depression With tDCS | IEEE Spectrum

Excellent article on the state of prescribed tDCS for depression.
Full article: Treating Depression With tDCS: Startup Ybrain Aims for the Mainstream

In South Korea, Ybrain is betting that these benefits and its slick consumer-friendly design will speed adoption of its device. “It’s designed for home use,” says Ybrain CEO Lee, “so physician can electronically prescribe the device and patients can bring it to their homes.”

Focus announces EEG Dev Kit

Update 2/2/17. Focus just announced functional Near-InfraRed Spectroscopy (fNIRS) capabilities for their EEG Dev kit!

This was announced a few days ago and to be honest, I wasn’t sure what to make of it… a battery-looking EEG thing. Certainly I’m not a ‘Dev’ and so I left it to those who are to parse the details, still…  Ah, yes, further details arrived today via email I’m happy to share with you (below). I do get the feeling this will make EEG devs excited.

Update 1/19/17 The focus site now has a photo of their new dry EEG electrode.

Thanks for all your feedback and questions about the focus EEG. A common question has been what exactly is included (see below) and is it everything required (yes).

Included in EEG Dev Kit

  • foc.us EEG 24-bit 8-channel EEG with tES & Wi-Fi
  • 8 active dry electrodes for EEG, plus bias & reference electrodes
  • 2 active bio-potential electrodes for ECG, EOG, EMG or EKG
  • 2 wet tES electrodes for tDCS, tACS, tPCS or tRNS
  • 10-20 placement cap
  • Mains power adapter for recharging
  • Raw data access

Next week we will provide more details on the software and SDK for EEG processing.

Sincerely,
team focus

P.S. The first 100 66 are available at only $999 $499 – half price!

What I’m excited about is the Focus EEG headset, but a recent tweet exchange indicates we’re a good year away from release.

NYC Neuromodulation 2017 | Yannick Roy

Yannick Roy of NeuroTechX put together a nice summary of his experience at the Neuromodulation 2017 conference in New York.
Read the whole Medium article here: NYC Neuromodulation 2017

Do not use the “Oreo Cookie” approach where you soak your sponge in your saline solution and squeeze it to remove the extra. Because it over saturates, it’s dripping, it’s very “subjective” and hard to reproduce. Get a syringe and put 8mL of saline solution on your sponge and make sure to also get the corners. Do that prior to insert the electrode in between the 2 layers. If it’s dripping wet, that’s bad (you’re doing it wrong!). You should not have to use a tower on the patient’s neck.

Yannick Roy from NeuroTechX with Marom Bikson, chair of the Neuromodulation Conference. The interview was recorded at City College, NYC, during the Neuromodulation 2017.

Andrea Coravos at the NYC Neuromodulation 2017 Conference trying out Halo Sport (with Brett Wingeier)

Do DIY Brain-Booster Devices Work? | Scientific America

Excellent article traces the rise in tDCS interest. Includes many of the key players and links to important research papers. Do DIY Brain-Booster Devices Work?

NYC Neuromodulation 2017 Conference January 13-15

That’s next weekend! Should be an exciting event. Check out the Abstracts submitted by presenters! Things like…

E-meditation: A novel paradigm using tDCS to enhance mindfulness meditation
tDCS metaplasticity and astrocytic calcium in mice
Individual Differences in tDCS Augmented Working Memory Training
Distracted driving and high-definition tDCS
Emotion perception improvement following high frequency transcranial random noise of the inferior frontal cortex
Adaptive tDCS controller for increasing dose to 4 mA
Dry electrodes for transcranial direct current stimulation (tDCS)
Seeking a Superman’s brain: HD-tDCS of brain networks in exercise performance
Investigating Possible Mechanisms of Action of Transcranial Electric Stimulation in Parkinson’s Disease

 

Zapping the brain really does seem to improve depression | New Scientist

Analysing these high-standard studies revealed that tDCS seems to reliably improve the symptoms of depression, addiction and craving, and fibromyalgia. It also uncovered that the technique does not work for tinnitus, and that the evidence for using tDCS for stroke rehabilitation was not as strong as many had thought.

Full article: Zapping the brain really does seem to improve depression

Full Paper: Evidence-based guidelines on the therapeutic use of transcranial direct current stimulation (tDCS)

 

Gamma Waves Enhance the Brain’s Immune System to Treat Mice with Alzheimer’s disease.

Foc.us v2 40hz tACS

I was first alerted to the story from a December 7 article in the Guardian, “Strobe lighting provides a flicker of hope in the fight against Alzheimer’s“. Researchers from the Picower Institute for Learning and Memory at MIT, working with (let’s call them) ‘Alzehiemer’s mice’, had discovered that flashing a light at 40hz (on-off at 40 times per second) increased gamma wave oscillations in the brain which led to the reduction of Amyloid beta (think, plaque) through the activation of microglia ‘clean-up’ immune cells. Here, let them explain it!

The paper, Gamma frequency entrainment attenuates amyloid load and modifies microglia makes clear that the light-flickering affected the visual cortex, which makes sense, as the light reaches the brain through the eyes. But wait, thinks I, what about tACS (transcranial Alternating Current Stimulation)… haven’t I seen numerous papers implying the ability to ‘entrain’ brain waves with tACS? What if you could increase 40hz Gamma in other parts of the brain? (Google Scholar Search: transcranial alternating, entrain, gamma)
But then I discovered that Radiolab just covered this exact story and it’s totally amazing! Really a must listen. So fun to hear the researcher’s amazement at this accidental (sort of) discovery!
So what’s with the photo of the Foc.us v2 device set up for a 40hz tACS session? Just that…

More about The Picower Institute for Learning and Memory at MIT

Do You Use Scientific Papers To Inform Your Home tDCS Use? Take The Survey!

Hi John, our research centre (CIBF via The Brain Dialogue) is doing a project involving home users of brain stimulation, the details of which can be found here We’re currently conducting a survey on how these home users find and use scientific literature. If it’s appropriate for your website, we would love if you could post about the survey as we want a broad range of home users to participate and DIYtDCS keeps cropping up in the conversations we have about home use. The survey can be found here https://www.surveymonkey.com/r/unintendedconsequences Please let me know if you have any questions or want more info about the project; you can also reach me via Twitter @ElizabethJPaton

A little more about The Brain Dialogue.

Medical Batteries – The History of Electrotherapy

Update 2/17/17 BBC The strange Victorian fashion of self-electrification
tdcslindstroms-electro-medical-apparatus

If you’ve been following along very closely you may recall that podcast episode #6 guest Anna Wexler mentioned in passing that she had been researching Ye Olde practice of therapeutically applying current to various parts of the body. Well, an early version of a new paper of hers landed the other day: Recurrent themes in the history of the home use of electrical stimulation: Transcranial direct current stimulation (tDCS) and the medical battery (1870–1920). It’s behind a paywall but here are some highlights.

  • Although the home use of tDCS is often referred to as a novel phenomenon, in reality the late nineteenth and early twentieth century saw a proliferation of electrical stimulation devices for home use.
  • In particular, the use of a portable electrotherapy device known as the “medical battery” bears a number of striking similarities to the modern-day use of tDCS.
  • Many features related to the home use tDCS—a do-it-yourself movement, anti-medical establishment themes, conflicts between lay and professional usage—are a repetition of themes that occurred a century ago with regard to the medical battery.
  • A number of features seem to be unique to the present, such as the dominant discourse about risk and safety, the division between cranial and non-cranial stimulation, and utilization for cognitive enhancement purposes.
  • Viewed in historical context, the contemporary use of electrical stimulation at home is not unusual, but rather the latest wave in a series of ongoing attempts by lay individuals to utilize electricity for therapeutic purposes.

Lots of ‘medical battery’ patents here.
And a ton of wonderful images to be found in books in Google’s digitized library.
Most of these came from a single book!

 

I intentionally electrocuted my brain. Here’s why… | BBC

BBC Three's Nick Arnold takes the Focus Sports for a test drive.

BBC Three’s Nick Arnold takes the Focus Sports for a test drive.

I contacted a few people using tDCS to cure their depression via social media. Mario, 32 from Mexico, told me it was working for him.

“I think it is great. You can see a lot of improvements in your mood. The more you use it the better you feel.”

Another user, eagee, wrote, “I suffered from depression for almost 25 years, and after I started applying tDCS I’ve had two years so far without it.”

If tDCS really can be so life changing for depression patients, why isn’t it more widely available?

According to Dr. Williams, “the equipment is so simple that it cannot be patented in the US. And if no one can own the rights to tDCS, no one can make a profit on it.”

That’s why, according to its supporters, tCDS is being ignored by major drug companies.

Slides From NIMH-sponsored tES Workshop Held September 29th and 30th at NIH

An email from Michelle Pearson at the NIH (because I had signed up for the online version of the workshop) alerted me today to a trove of TES (Transcranial Electric Stimulation) info being made available to us. Presenter slides (in PDF form) from the workshop were available for download. Because the download process was pretty wonky, involving many clicks and declined logins to Dropbox I thought to make them available here as well.

1-lisanby-introductory-remarks Sarah Hollingsworth Lisanby, M.D., NIH
2-rumsey-introduction Judy Rumsey, Ph.D.
3-wassermann-historical-overview Eric Wassermann, M.D., NINDS
4-parra-tdcs-mechanisms Lucas Parra, co-founder of Soterix Medial Inc. @lcparra1
5-frohlich-tacs-mechanisms @FlavioFrohlich, University of North Carolina-Chapel Hill
6-clark-combining-imaging-and-stimulation Vincent P. Clark, PhD Mind Research Network
7-woods-tes-technical-aspects Adam J. Woods, PhD @adamjwoods
8-richardson-blinding Jessica D. Richardson, Ph.D.
9-kappenman-reproducibility Emily S. Kappenman
10-bikson-computational-modeling-design Marom Bikson, CCNY @MaromBikson
11-deng-anatomical-variability-efields Zhi-De Deng, Ph.D., NIH
12-dmochowski-targeted-stimulation-sources Jacek P. Dmochowski, CCNY
13-loo-depression-trials Colleen Loo, Black Dog Institute
14-brunoni-neuropsychiatry-large-trials André R. Brunoni, @abrunoni
15-cohen-motor-learning Leonardo G. Cohen, M.D. NINDS
16-edwards-augmentation-neurorehabilitation Dylan J. Edwards PhD
17-lim-ongoing-trials Kelvin O. Lim, M.D.
18-frohlich-tacs-psychiatry-trials @FrohlichLab
19-charvet_remote-tdcs Leigh Charvet PhD, NYU

Early Torpedo Fish TES Researcher. From the Wassermann Historical Overview slides

Early Torpedo Fish TES Researcher. From the Wassermann Historical Overview slides