YouTuber taiwanjohn puts the finishing touches on his DIY tDCS device.
Published on Mar 13, 2017
Dr. Andy McKinley is the leader of the Non-Invasive Brain Stimulation (NIBS) Team in the Cognitive Performance Optimization Section, Applied Neuroscience Branch, Warfighter Interface Division, Human Effectiveness Directorate at Wright-Patterson Air Force Base.
AirmanMagazineOnline Youtube Channel
See Also: Super SEALs: Elite Units Pursue Brain-Stimulating Technologies (Military.com)
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
According to Instructables/reddit user quicksilv3rflash…
This device can be used for any kind of human electrical stimulation, such as tDCS, tACS, tRNS, or tVNS. Its hardware, when properly constructed and tested, limits output current such that -2.1mA < output_current < +2.1mA , based on the 2mA safety limit recommended in these published guidelines.
Transcranial Electrical Stimulator, Arduino Compatible
Discussion on Reddit Clear instructions to build a precision computer-controlled tACS/tDCS/tRNS device, <$100
Build a Human Enhancement Device (Basic TDCS Supply)
Simple TACS for Analogue Electromancers
Full Story: LED headset shows promise for Alzheimer’s, brain injuries | CITY News
This device/protocol is new to me, though I have been looking into Low Laser Light Therapy which looks promising. I will be looking into the science around this device, also its history, i.e. which came first, the device or the science.
Lew Lim, the founder and CEO of VieLight is seen explaining the device in the video.
The technology is called transcranial and intranasal photobiomodulation (PBM). Initial, small-scale results, are promising.
Five people, with mild to moderate Alzheimer’s, used the headsets every day for 12 weeks. The headset frame, with four different LED cluster-heads and an LED that clips to the inside of the nostril, was turned on for 15 minutes a day.
After the three months, neuroscientists noticed some patients, who were not able to speak in full sentences, could now put sentences together. Patients also experienced improved sleep and reduced wandering.
The device is called VieLight, (which does not include EEG which was used in the study depicted), seems to be available for sale. A smaller device, called the ‘Pocket Miracle’ is also for sale.
Updated with Phil’s follow-up post 3/21/17
Youtube reviewer Phil checks out the Halo Sport tDCS device for the first time. Will post his follow-up review when he posts. I like the idea of him testing with typing speed.
Using remote rehabilitation to administer tDCS to MS patients.
Zapping Your Brain at Home to Cure Fatigue
Each day for two weeks, Bennett would don a headband equipped with moistened sponges and attached to what she called a “big cellphone”—a tDCS stimulator. When she was ready to start the session, a clinician would give her a four-digit code to enter on a keypad, and the current would surge through the wires and into her brain.
Transcranial Direct Current Stimulation Combined With Computer Games At Home Reduces Cognitive Symptoms of Multiple Sclerosis
More about Supervised Neuromodulation: Soterix mini-CT
Robin at Caputron sends word of their new ‘exclusively from Caputron’ ActivaDose 29V 2mA max Iontophoresis device. My one caveat with the ActivaDose had been the potential for user error in choosing a 4mA setting (rather than the 1 or 2mA setting traditionally used in tDCS research). This new device removes that possibility. This is the device you could confidently show your Mom how to use. The new version maintains the ActivaDose FDA approval for iontophoresis. This new version becomes the device I can recommend in all confidence, also because Caputron stands behind all the products they offer.
Readers of the blog get a generous discount on this, or any other (including GoFlow) device purchased at Caputron using promo code diytdcs at checkout.
Full article: Is e-meditation wave of the future?
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.
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.
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.
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.”
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.