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GoFlow: a DIY tDCS brain-boosting kit

extremetech.com

11–20 of 90 posts

Re: GoFlow: a DIY tDCS brain-boosting kit

#13
post #9

So, some electrodes (easily available for TENS machines, or you could go more high-tech); conductive gel; one 9v battery; one 4500 ohm resistor; (or probably two batteries and a current regulator). Does anyone have a map of cathode / anode electrode positions?

http://www.jove.com/video/2744/electrode-positioning-and-mon...

also there is reddit.com/r/tdcs for more info

Re: GoFlow: a DIY tDCS brain-boosting kit

#14
> It’s not hard to see how tDCS could pose some ethical considerations, though.

Only if you're primed by your culture to blanch at transhumanism.

> What if some students can afford tDCS kits, but others can’t?

What if some students can afford college, computers, calculators, tutoring, study guides, etc. but others can't? This is one of the silliest purported ethical issues I've ever seen, but it consistently gets contemplating nods from those pretending to be wise, so long as we're talking about a new, scary technology, and not a mundane, accepted reality.

Re: GoFlow: a DIY tDCS brain-boosting kit

#15
As an EE, I was pretty sure I could disprove this, with a quick look at conductivities of bone vs muscle. My theory being that most of the electric current would travel through the scalp, and not pass through the skull to the brain.

I found this link, however, which is pretty interesting, that shows conductivities of various tissue types, if anybody is interested. It looks like the skull is not much of an electrical barrier.

http://iopscience.iop.org/0031-9155/54/16/002/pdf/0031-9155_...

Re: GoFlow: a DIY tDCS brain-boosting kit

#17
A cautionary tale. I'm getting a skin graft on Monday after I gave myself 1% full thickness burns with 3 x 9v batteries. I'm a paraplegic and I fell asleep with electrodes on my back so I'd didn't feel anything but awoke to some pretty nasty burns. I completely underestimated the risk of hurting myself.

Re: GoFlow: a DIY tDCS brain-boosting kit

#18
post #17

A cautionary tale. I'm getting a skin graft on Monday after I gave myself 1% full thickness burns with 3 x 9v batteries. I'm a paraplegic and I fell asleep with electrodes on my back so I'd didn't feel anything but awoke to some pretty nasty burns. I completely underestimated the risk of hurting myself.

Was that with or without a current regulator?

Re: GoFlow: a DIY tDCS brain-boosting kit

#20
post #2

Are the measured effects of tDCS really large enough to outweigh any effects from confirmation bias and statistical anomalies? Were the tests performed double-blind using placebo units?

Gotta agree with the placebo question here. When I'm having a really excellent learning day, it scares me how fast I learn. When I'm not, a 9V battery to the head doesn't sound like the worst idea...

Read the articles. Studies were done double blind. There is no placebo effect.
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