tDCS informed consent video

[rytallica898]

@rytallica898 Humor, another abstraction, and clearly a creative act, depends on both right and left hemispheres for certain subtypes of humor—prosodical manipulation more to the right, 3rd person dramatic irony to the right, but odd relational humor more left.

Bear in mind, none of these information types lateralize exclusively left or right. Please be careful when you posit something as general as abstract conceptualization to be a right hemisphere activity.

[intilli4]

This is a very good, informative video explaing a little about tDCS. I would really read a lot more before any of this is attempted. You can cause the reverse effects of what you are trying to do if you are uninformed.

[QwAdr0x256]

I want to stimulate the right side of my brain (creativity) can I use this device to accomplish this?

[rytallica898]

@QwAdr0x256 RIght brain is not a creativity center. This is just a myth perpetuated by sensationalist news and pop psychology. Truly most abilities are distributed between both left and right lobes (although sometimes they are differentially distributed, e.g, a form of processing is sometimes 60% right and 40% left).

Signed,

Neuroscientist (grad student)

[keithhallamg1]

@rytallica898 No it isnt but it is associated with abstract conceptualization which is a fundamental part of creativity.

[rytallica898]

@keithhallamg1 But I do not just want to correct you. I would prefer to set you right. The right cortex: neuropsychological lesion studies (see Elizabeth Warrington) shows *more* visual information about multiple angles of an object is lateralized right, whereas in the left, more CANNONICAL views lateralize there. And yet, in another domain, musical notation, mathematical symbols and manipulation, these abstract concepts localize more to the left.

[rytallica898]

@keithhallamg1 I can also explain hypotheses about the mechanisms of the information processing that occurs between the various cortical areas to synthesize these experiences....if you're not convinced.

[Sergiuss555]

@rytallica898 i think the main idea is that this technique can be used to enhance your certain capabilities in each particular case. People should really think of this. Surely activating the right lobe (and inhibiting the left one) won't develop you much but it can give you access to some extra skills in certain tasks. This should be used carefully and smart way.

[rytallica898]

@Sergiuss555 Obviously. I never denied tDCS's efficacy. My comment to keithhallmg1 was aimed squarely at incorrect notions about the brain.

As for activating right and inhibiting left—we've been doing it for years without tDCS! Sodium amaytal tests allow us to selectively turn off a single hemisphere of a human's brain, safely. Certainly, some concrete forms of processing are laterlized, e.g., language. That's not being denied.

[rytallica898]

@rytallica898 Additionally, I denied that abstract conceptualization was unilateral in the same way that vision and motor planning are not unilateral.

I can go more in-depth into this, but right now I have a deadline coming up. And someone from NIMH is calling.

[rytallica898]

@Sergiuss555 What I did deny, as well as anyone who's had an actual class in cognitive neuroscience (and was awake for it), was that any processing type uses exclusively one hemisphere. Even language isn't TRULY 100% unihemisphereic. Go read UC-san diego hospital's paper on children with perinatal right hemisphere lesions and tell me right hemisphere isn't used in language.

[Sergiuss555]

@rytallica898 ok, i think we have nothing to disagree about here :) as I completely agree to everything you said. I don't agree about most of processes being "completely unilateral", but I would notice that inhibiting does not mean switching off/freezing.

It is too bad that our brain is too deep and inaccessible and our influence can be too vague and rude so far.

[Sergiuss555]

@rytallica898 i mean, you don't eat with your feet, and you don't dig with your teeth.

so, why using the left/right/whatever lobe/nucleus while solving a task which is better done with another lobe/part etc.?

[gerbosan]

the electrodes position is random or is there an specific position? and why? Also wondering about the amperage and voltage. How do they reached those values?

Wondering if I can try it by my self.

[MrQuetiapine]

what's the concentration of the slat water, and what was the material of the electrodes.

[bitbythehorsebug]

Thanks for the informative video. Changing brain function is always a little bit unnerving, but also very interesting and cool research!! Do you know how to become part of the trials for tDCS and math comprehension? I would most definately be a test subject for that!

[amnettube]

It would be useful to use a proper speaker.

[pokerdice1]

TDCS uses small electrodes placed in DIRECT contact with the head and a weak current is used to inhibit or excite action potentials in the cerbral cortex, biasing towards or againsy specific neuronal set firings (activity). TMST uses a strong electromagnet positioned near to, but not touching the scalp, to actually cause specific firing patterns to occur.