Neuroscience general

[Anonymous No.6779222]

Neuroscience general. Ask questions, and answer them to the best of your abilities. Or just post cool images. Everything neuroscience related goes.

[Anonymous No.6779238]

[Anonymous No.6779251]

[Anonymous No.6779267]

[Anonymous No.6779276]

[Anonymous No.6779289]

I need a book on Neurophysiology.

[Anonymous No.6779292]

>>6779222

I suffered a defuse axonal injury with some focal bleeding in the right frontal/temporal area, I did not get an mri until 3 days after initial injury, when they did the mri they saw that there was not enough bleeding to require bore wholes, does sci know if they were just to late to the scene? would not the swelling have gone down after 3 days?

CT scan done upon arrival, would that have provided enough resolution? I cant even see the bleed on the CT but in the MRI its clear as day, about the size of a finger tip.

Yes it was bad, could not make memories for 17 days, no vivid memories for about 5 weeks, could not pay attention, could not balance, body forgot how to use the right leg, shoulder was dislocated, scapula was winging... still cant feel my right hand. bunch of bad shit, I have recovered rather fully though, I seem to have lost some social skills, emotional response are not intuitive any more.... gah i'm probably like one of the basement dwellers I hear so much about on this site... except i'm tall and good looking.

[Anonymous No.6779293]

>>6779289
Get Kandel, it has everything

[Anonymous No.6779301]

>>6779292
The thread said neuroscience, not neurology.

[Anonymous No.6779314]

>>6779301
sorry its the brain damage.....

[Anonymous No.6779318]

>>6779314
well at least you still got your sense of humor

[Anonymous No.6779328]

>>6779292
CT scan wouldn't have given that much information, since it's usually negative in the case of diffuse axonal injury. You could probably see the bleeding on it, but you also can on MRI.

Problem is that acute damage to neurons has already been done after 3 days, and there's not that much doctors can still do except reduce the pressure. The MRI was probably performed to visualize the extent of injury and gauge how your recovery would be.

The difference between CT and MRI is not resolution but rather modality. CT actually has somewhat higher resolution than MRI (although it depends on the hardware and/or type of scan), but has very poor soft tissue contrast. Also, with MRI you can look for specific things using for instance perfusion imaging to see if there are brain regions with less perfusion, diffusion imaging to look at white matter damage, or susceptibility-weighted imaging to look at bleeds.

[Anonymous No.6779332]

>>6779222
what is consciousness and what is it made out of?

[Anonymous No.6779338]

>>6779332
http://www.cogsci.ucsd.edu/~pineda/COGS175/readings/Lamme.pdf

[Anonymous No.6779363]

[Anonymous No.6779365]

Does /sci/ agree here? Is the blue brain project worthless?

http://youtu.be/59oTDSgemtE?t=44m0s

[Anonymous No.6779368]

>>6779365
you really expect us to watch the full hour and a half?

[Anonymous No.6779371]

>>6779368
>?t=44m0s

[Anonymous No.6779380]

>>6779365
Worthless? No, of course not. Nothing in science is worthless, even if the results are negative.

Do I believe they're actually going to reverse engineer a brain? No.

[Anonymous No.6779381]

>>6779371
I started at 44 minutes, and so far I've only heard talk about the implications of null results, and some guy talking over a very poor skype connection.

Where exactly does the blue brain project come in?

[Anonymous No.6779395]

>>6779381
Miller says

>...and there's actually a big todo in the field right now. There's something called the Blue Brain Project of Henry Markram in Switzerland, where his claim and belief is that he's going to put every detail into the computer and out is going to emerge the brain and then we're going to understand the brain. I have to say that every theoretical neuroscientist I know thinks that is nuts, including myself.

[Anonymous No.6779409]

>>6779395
Right. At what point does he say it's worthless though? He makes a pretty strong argument for modeling prior to making that statement actually.

[Anonymous No.6779421]

>>6779409
He implies that such a "model" will have no explanatory power.

[Anonymous No.6779451]

>>6779421
but the point of a model is to have predictive power

[Anonymous No.6779455]

>>6779328
Thank you for the reply, my recovery is leaps and bounds better than they expected, but I still don't recommend the brain damage, it's not all its cracked up to be.

[Anonymous No.6779461]

>>6779451
only for engineers

[Anonymous No.6779466]

>>6779461
lol, no

[Anonymous No.6779472]

>>6779466
Please learn some science. A mechanism and a model are two sides of the same coin. The "direct-indirect" pathway description of the basal ganglia is objectively less shittier than some incomprehensible black box model thrown into a computer giving basically the same (or slightly more accurate) results.

[Anonymous No.6779474]

>finish neurosurgery residency
>$400,000 starting anywhere I want

prove me wrong

[Anonymous No.6779475]

Dumb question,

I'm being taught by my PI how to patch clamp. I already know the whole setup, thye right prep work, etc, but I just want to know...

How long does it take to get gud at electrohpysiology?

[Anonymous No.6779480]

>>6779474
I can't

[Anonymous No.6779493]

>>6779472
>Please learn some science.
Let's not go down that route. I'm perfectly willing to debate this, as long as we keep it civil.

>The "direct-indirect" pathway description of the basal ganglia is objectively less shittier than some incomprehensible black box model thrown into a computer giving basically the same (or slightly more accurate) results.
That all depends on what you're interested in. A couple of primary things constitute a good model, to wit: explanatory- and predictive power, parsimony and biophysical accuracy. It'd be narrow minded to say that any one of these has priority over the others in any given situation, because it depends on the purpose of the model. Obviously if you're looking to model how deactivation of the STN counteracts Parkinsonian symptoms, then sure, the dirict-indirect route model is perfectly fine. You can go ahead and sacrifice biophysical realism for the sake of parsimony, it's the system dynamics that matter after all. However if you're trying to model
how single-neuron properties manifest themselves in gating behavior of the basal ganglia, then no, the direct-indirect pathway model will not suffice. Low-level non-linearities will have to be taken into account in that case and you'd need a model that is as parsimonious as possible but give priority to realism.

[Anonymous No.6779500]

What do people ITT think of David Marr?

[Anonymous No.6779511]

Are there proven drugs / foods that improve thought processing, intelligence, focus and problem solving?

Are we the smartest humans to ever walk earth?

Are IQ tests efficient at measuing intelligence?

[Anonymous No.6779545]

>>6779493
I can see the need for hierarchical levels of (neuro)science. However, I don't think this means there shouldn't be a priority to find the crux of what's going on at each and every scale in understandable terms. Science needs theory. Scales might mix (as in your example), but that shouldn't regress to total lack of comprehension, as what's almost certainly assured in the case of the blue brain project.

[Anonymous No.6779557]

>>6779545
>there shouldn't be a priority to find the crux of what's going on at each and every scale in understandable terms.
Sure, I agree with that, but scale-restricted and integrative cross-level research supplement each other. Neither can exist without the other.
>but that shouldn't regress to total lack of comprehension, as what's almost certainly assured in the case of the blue brain project.
I recon this is where our thoughts diverge. I don't think the blue brain project is earth shatteringly amazing or anything, but we could use a good integrative model. It's not like they're doing the whole thing at once right away, it progresses in steps as it should, scaling up and modifying the model along the way.

[Anonymous No.6779571]

>>6779292
If you're looking into therapeutics to help consider 7,8-dihydroxyflavone. It's a BDNF mimetic and shows efficacy in animal models of TBI.

You can buy it here:

http<span class="math">[/spoiler]://www.tht<span class="math">[/spoiler].<span class="math">[/spoiler]co/cognitive-enhancement/7-8-dihydroxyflavone

[Anonymous No.6779624]

>>6779474
>tfw this is actually true
this nigga

[Anonymous No.6779653]

>>6779474
Shit like this is why I think we all wish we went to medical school.

[Anonymous No.6779681]

>>6779222
Perhaps this is more psychology related but what would an average 5 year old score on an IQ test where average adults score 100?

[Anonymous No.6779709]

>>6779557
>Sure, I agree with that, but scale-restricted and integrative cross-level research supplement each other. Neither can exist without the other.
But that's kind of what the guy in this video is dismissing.

It seems like the work he does is in neural networks, which I'm sure we all agree are very reductionist models of neurons and their behavior. But his point is that the insight such a simple model gives (and here I presume he means things like DNN's mimicking the visual cortex a la Google cat detector) gives confidence that those details that the model is missing aren't of Earth shattering importance.

The brain is one of the most complicated structure in the universe and there's limited money to spend researching it, so I think I'd agree with the sentiment that we should draw a clear line of abstraction between things that deserve a lot of attention and are essential to brain function and things that don't and are not. Where that line lies or if it even exists seem like something a lot of neuroscientists disagree on.

I'm not entirely sure what exactly they're putting into the Blue Brain Project, but among the things I've heard are complicated models of ion channels. Are these really key features to understanding how the brain works? I guess I'm kind of questioning the value of an integrative model for absolutely EVERYTHING we know (or think we know) about the brain.

[Anonymous No.6779728]

Anyone have good brainbow pics? Here's a fly brain, including the eyes it looks like.

Larger picture of this image of a slice of spinal column would be much appreciated.
http://youtu.be/82tQ4ID-xNg?t=40m29s

[Anonymous No.6779824]

>>6779293
Principles of neural science?

[Anonymous No.6779853]

[Anonymous No.6779862]

>>6779222
How do I get ahold of something like an MRI machine?
Is there any possible way to like, rent time in one?

[Anonymous No.6779873]

>>6779853
What about the density anon?

[Anonymous No.6780200]

>>6779681
Still waiting.

[Anonymous No.6780206]

Built my own Tdcs device today.

Gonna play around with it and then use a good memory montage to help with studying.

[Anonymous No.6780210]

>>6779474
Cant, wish I picked neurosurgery.

[Anonymous No.6780211]

>>6780206
This can only end well.

[Anonymous No.6780216]

>>6780211
What, me no am mistake! Is good! Brain work wells.

[Anonymous No.6780316]

>>6779289

For the hardcore:
http://www.amazon.com/Foundations-Cellular-Neurophysiology-Bradford-Books/dp/0262100533/ref=sr_sp-atf_image_1_3?ie=UTF8&qid=1411880240&sr=8-3-fkmr0&keywords=neurophysiology+cadence

[Anonymous No.6780403]

How the fuck is histamine anticonvulsive?

[Anonymous No.6780525]

>tfw CNS doesn't post here anymore
>tfw all the oldfags are gone

[Anonymous No.6780653]

>>6779709
>But that's kind of what the guy in this video is dismissing.
I don't see how. Arguing in favor of abstracted models is not the same as arguing against cross-level research. Of course the two aren't quite orthogonal, but they're not mutually exclusive either.

>gives confidence that those details that the model is missing aren't of Earth shattering importance.
They're not of importance to behavioral performance, specifically. As alluded at earlier, however, in this case the priorities of the model are in explanatory power of behavioral observations and in parsimony. That's not necessarily what you want for each and every model though.

>Where that line lies or if it even exists seem like something a lot of neuroscientists disagree on.
Sure.

>Are these really key features to understanding how the brain works?
Again, that depends. Many people would argue that accurate models of ion channels are not necessary at all to explain brain function. Others would argue that they are critical. The confusion arises because people often have an implicit view on what level of study is key. Ion channels aren't necessary to explain how system dynamics lead to behavior, but they are important if you want to test system-level consequences of low-level cellular properties. For example, properly (i.e. including its functional origin) modeling the neuropathogenesis of an epileptic seizure is not possible without including ion channel function. Leaving them out would limit the extent of explanation and prediction that follow from the model. If the point is to have as much cross-domain predictive power as possible, then yes, they are key. Whether or not the model should have cross-domain predictive power in the first place is a different discussion altogether.

[Anonymous No.6780654]

>>6779474
>mfw this is true

[Anonymous No.6780699]

Is Tononi's IIT quackery?

thank you based neurofags

[Anonymous No.6780710]

>>6780653
It seems like there are two kinds of neuroscientists, those who want to understand the brain well enough to cure any disease it might have, and those who want to understand it well enough to build artificial brains. DARPA has probably had a hand in creating this divide.

[Anonymous No.6780781]

>>6780710
>DARPA has probably had a hand in creating this divide.
I don't think DARPA has anything to do with anything.

[CNS !MT.CNS.YRY No.6780788]

>>6780525
>tfw CNS doesn't post here anymore
hello there

[Anonymous No.6780859]

>>6780781
DARPA has funded quite a few projects to try and reverse engineer brains. I think one even involved the octopus brain.

[Anonymous No.6780868]

>>6780859
So? The funding they give is relatively small compared to the global budget. Aside from that, anything they fund has an inherent publication lag of at least a year because the like to keep things internal. They don't influence the scientific consensus except for their own.

[Anonymous No.6780892]

>>6780868
You seem awfully familiar with how DARPA operates...

[Anonymous No.6780897]

>>6780892
Not really, but I am very familiar with the way the neuroscientific community operates.

[Anonymous No.6780912]

>>6780897
Are you a researcher?

[Anonymous No.6780913]

>>6780912
Yup.

[Anonymous No.6780928]

>>6780913
What's your research about?

[Anonymous No.6780941]

>>6780928
The role of the Locus-Coeruleus norepinephrine system in visual attention and decision making.

[Anonymous No.6780963]

>>6780941
Is it large?

[Anonymous No.6780993]

>>6780963
My field you mean?

[Anonymous No.6781008]

>>6780403
Something to do with smooth muscle contraction and histamine receptors on smooth muscles or some shit.

[Anonymous No.6781024]

>>6780993
No, the role of the thing in the thing.

[Anonymous No.6781032]

That's a great thread.

1. So I have some anxiety problems (all in all I might not have an anxiety disorder, but I'd like to have as little fear as possible). Also: obsessive narcissistic (or anxious at my worst) fantasies.
I've been said, that fMRI or SPEC scans will clear things up, but that's impossible in my position. Will MRI give any information about my emotional state and it's physiological causes, so I can use more fitting meds, for example?

2. AFAIK we lose more energy, when actively thinking or being concentrated. So if I'm trying not to lose any weight (gain it in fact) will it help if I, say, play videogames instead of studying, when I'm hungry, or is this just a bullshit rationalisation?

3. So the recent study showed, that specific parts of the brain basically go into the sleeping mode for some time after being used too much throughout the day, or after insufficient sleep. What is the minimal sleeping period in order to be at full mental capacity? Is this amount different for different people, proportionally to the amount of sleep they feel they need, or is this just an effect of different temperaments and should thus be ignored?

4. What would one want to consume before and at the time of the intellectual work?

5. What are some known substances that permanently lower individual's empathy or so-called hoard instinct?

[Anonymous No.6781033]

>>6781024
Sure, it has some important regulatory properties.

[Anonymous No.6781035]

How does the brain process dimensionality? Is there anything actually preventing the brain from spatializing more than 3 dimensions?

[Anonymous No.6781039]

>>6781035

Yeah, the three dimensionality of our universe.

[Anonymous No.6781070]

>>6781032
1. Can't answer, I'm not a clinician.

2. Intense cognitive effort does consume energy, but comparatively little with respect to muscle activity. If you're trying to gain weight, simply eat more. As an aside, playing a video game counts as intense cognitive effort, so that won't help you much.

3. It depends on the person. On average a person ideally gets about 8 hours of sleep, though this also varies throughout your lifetime.

4. Something high on glucose.

5. Couldn't tell you, but what I can tell you is that taking something like that is probably not a good idea.

[Anonymous No.6781087]

>>6781070

> As an aside, playing a video game counts as intense cognitive effort, so that won't help you much.

But it's still less intense than doing maths? Anyway, what about reading maths-free text?

> but what I can tell you is that taking something like that is probably not a good idea.

If the substance doesn't have any too bad negative side-effects (which I bet it fucking would), I am absolutely sure, that lowering empathy will yield only advantages. It's also very clear to see, just from the glance at the social structure of primates.

[Anonymous No.6781089]

>>6781032
you sound like the edgiest betalord

[Anonymous No.6781096]

>>6781089

That's just your insecurities speaking, gamma-male. Besides, I'm what you would call an alpha of my uni group, so.

[Anonymous No.6781105]

>>6781087
>But it's still less intense than doing maths?
Depends on the game. An intense shooter or a game where you have to solve puzzles is cognitively demanding. But you're focusing on the wrong part of my answer here.

>Anyway, what about reading maths-free text?
Less intense than text full of math, but again, won't make much of a difference to your weight.

>I am absolutely sure, that lowering empathy will yield only advantages.
>It's also very clear to see, just from the glance at the social structure of primates.
Out of all species of animals next to humans, you mention the order of animals with the largest empathic abilities we know of to support your argument?

[Anonymous No.6781107]

>>6781096
>Besides, I'm what you would call an alpha of my uni group, so.
I literally cringed while reading that, and I'm not even the person you're responding to.

[Anonymous No.6781113]

>>6781096
alright, now you've seriously pissed me off.

*unsheathes katana*
*teleports behind you*

heh... nothing personal, kid.

*slices you in half*
*walks away with nigh a backwards glance*

[Anonymous No.6781115]

>>6781105
>An intense shooter or a game where you have to solve puzzles is cognitively demanding.
This is what manchildren actually believe.

[Anonymous No.6781118]

>>6781115
I don't even play video games.

[Anonymous No.6781134]

What is the best book to study neuroanatomy? I already finished the anatomy chair in my college but I think I didn't get out with enough knowledge.
Sorry for my English. I can read perfectly but my grammar sucks.

[Anonymous No.6781154]

>>6779222
Why haven't you ended psychiatry yet?

[Anonymous No.6781186]

>>6781154
Because that'd be a stupid thing to do. It can always be improved though, which is an ongoing process.

[Anonymous No.6781192]

>>6781115
>shooters
>not cognitively demanding
How do you figure?

[Anonymous No.6781220]

>>6781192
When's the last time you heard of a genius who played a lot of shooting games?

[Anonymous No.6781227]

>>6781220
'cognitively demanding' and 'need to be smart to be able to do it' are not the same thing... cognitively demanding just means that it consumes cognitive resources at a faster rate than other activities, i.e., tires out your brain.

[Anonymous No.6781234]

>>6781220
>n00b who gets his shit pushed in detected

[Anonymous No.6781239]

>>6779511
Amphetamine, low dose LSD stimulates the mind also but only sub 70 micrograms

[Anonymous No.6781248]

>>6781227
That's still dubious. Find me an fMRI study or something like that.

[Anonymous No.6781277]

>>6781248
I'm going to humor you by taking your post seriously, but know that I'm having a tough time not face-palming here. It's funny how people always seem to think that adding MRI to a study somehow automatically makes it more scientific. It's a tool with a specific purpose, and in the case we're discussing here it's not even close to the right tool.

Anyway, here are a bunch of studies that are aimed at measuring cognitive load during video game performance:
http://pro.sagepub.com/content/56/1/2147.full.pdf+html
http://www.sciencedirect.com/science/article/pii/S0953543806001135
http://www.igi-global.com/chapter/evaluating-managing-cognitive-load-games/20116

[Anonymous No.6781285]

>>6779511
Intelligence doesnt have an objective value, which we are now learning from studies of animal intelligence. Thinking that a high IQ means someone is a genius is a poor judgement because they may be lacking in other areas now considered important in intelligence. IQ is more of an assessment tool.

We should technically be no more intelligent than humans from 100,000 years ago but there may be some differences.

[Anonymous No.6781330]

>>6781277
Get a sense of humour, bud.

And it's obvious that games have SOME kind of cognitive load, but how does it compare to other activities like playing an instrument or reading a book?

[Anonymous No.6781356]

>>6781330
It depends on the game, book, or instrument.

[Anonymous No.6781555]

>>6779681
>>6780200
Anyone?

[Anonymous No.6781561]

>>6781555
It's time to accept that your niece is retarded.

[Anonymous No.6781566]

if u fart while sneezing in the fetal position on a cold blue floor naturally lit will you become uncontrollably sexually violent

[Anonymous No.6781574]

Depending on your definition, walking upright is cognitively demanding; after all, we couldn't program a computer to stabilize the human body while walking a flight of stairs yet. Shooters also obviously are cognitively demanding - I suck at them, even though I have a perfectly capable brain, and it's certainly not due to some PHYSICAL problem, so it's a cognitive one.
On the other hand, they're not demanding in the same way that being useful for the world by, for example, being a scientist is.

>>6781248
How would an fMRI study show if something is cognitively demanding?

[Anonymous No.6781664]

>>6781105

> Out of all species of animals next to humans, you mention the order of animals with the largest empathic abilities we know of to support your argument?

That's not what matters though. It's a readily observable fact, that those who are more successful in mating, gaining resources and getting respect, high social evaluation, tend to be less empathetic. They are more resistant to any sorts of manipulations, social pressure and their hoard instinct is weaker (which is manifested in them less frequently picking up local memes and expressions).

[Anonymous No.6781670]

>>6781285

> Intelligence doesnt have an objective value

Expand, please.

> because they may be lacking in other areas now considered important in intelligence

Such as?

> We should technically be no more intelligent than humans from 100,000 years ago but there may be some differences.

May be as in 50/50? That's not an argument for any conceivable position, is it?

[Anonymous No.6782398]

>>6781664
You really don't know how evolution works, do you?

[Anonymous No.6782416]

Fuck yeah, neuroscience.

[Anonymous No.6782424]

http://america.aljazeera.com/articles/2014/9/27/i-want-to-be-yourneuroscienceexperiment.html

>discuss

[Anonymous No.6782481]

>>6782398

Do I not? Where's my mistake then?

[Anonymous No.6782555]

>>6781039
Why couldn't a processor process something entirely virtual?
I've rendered n-dimensionally on psychedelics.

[Anonymous No.6782712]

>>6781670
Do you get joy out of being an annoying pedantist?

[Anonymous No.6782716]

I have a sort of neuroscience question here:
>>6782708
>Say I had two pieces of steel the size and shape of a hand giving the thumbs up sign. Were I to drive one thumb through someone's right temple and the other through their left temple simultaneously, what parts of the brain would be punctured and what sort of horrible, horrible damage would this inflict?

[Anonymous No.6782718]

>>6779222
I have low norepinephrine, past the blood-brain barrier.

What foods/activities can raise norepinephrine?

What can I avoid to prevent low norepinephrine?

[Anonymous No.6782749]

>>6782712

It's just that you give off the impression of an incompetent retard, stating those things you are not in position of knowledge to state.

[Anonymous No.6782750]

>>6782481
I'm not even gonna brother. It should be obvious but apparently it isn't to you, so thanks for validating my earlier statement.

[Anonymous No.6782758]

>>6782555
>I've rendered n-dimensionally on psychedelics.

sure you have

like that totally isn't a byproduct of the delusional mindset induced from the drug

[Anonymous No.6782798]

Is Dennett right about consciousness?

[Anonymous No.6782804]

>>6781561
I just want to know how the IQ of an adult chimpanzee would compare to an adult human because their intelligence is often said to be the equivalent to a 5 year old human child.

[Anonymous No.6782823]

>>6779395
That is the fucking stupidest idea I have ever heard
I've said it before but that really takes the cake.

[Anonymous No.6782846]

Serious question guys

I'vealways wanted an mri of my brain, to study and look for things.
I just got an mri recently to deal with obstructed nasal passage which was rremedied earlier this month
Thing is, I couldn't smell for two decades, couldn't smell well I should say.

Now this MRI exists but its on my doctors computer, I'll be in his office momentarily to ask if there is any way to obtain a personal copy even though I recognize that I don't have the software to view it at home.

The other thing I'm wondering is whether or not one brain MRI differs from another in focus. My brain is very much in the image, but he's not a neurologist so I wouldn't expect him to discern anything unrelenting to his field (otolaryngology).

[Anonymous No.6782888]

>>6782758
>mention a "drug"
>"It's just the drugs, they're bad, stop taking them seriously"
Well goddammit.
Please tell me, by what mechanism could these "delusion-inducing drugs" cause a delusion to manifest as a clearly rendered plane of perceived dimensionality d>3 which can flow through itself without intersecting? Be it a delusion or not, what is rendered is rendered and I'm not the only person reporting such an experience.

[Anonymous No.6782915]

>>6782823
Do you have an argument? Seems about right to me.

[Anonymous No.6782920]

>>6782750

Thanks for confirming you're a random troll.

[Anonymous No.6782922]

>>6782846
What's your question exactly? Whether or not one MRI scan is the same as another? No, they're not.

[Anonymous No.6782923]

>>6782920
nope, I just don't feel like dealing with your any longer

[Anonymous No.6782926]

>>6782923
That's why you've constantly replied to his posts over the course of half a day or more

Jesus Christ some of you really need to get some hobbies.

[Anonymous No.6782928]

I was thinking of a brain stimulating device earlier

Instead of housing the power source in brain, perhaps a flyback-type coil could be used, inside the brain near the skull. By using a non-polar capacitor, one could repeatedly do small pulses for steady dc stimulation, but perhaps a second latching device could be used (a non-volatile flip-flop) so AC could be used without interference from the capacitor. A high frequency pulse could be used by having a slight inductor in the path, to prevent the current reaching the brain instead of the flip-flop.

Another option is pick a capacitor value so small, that it becomes negligible for the AC stimulus, but then you'd probably need like 100khz dc pulses because of how little energy could be stored per pulse.

AC is generally shit for brain stimulation though, so maybe it wouldn't matter and the coil+capacitor would be better.

[Anonymous No.6782952]

>>6782926
There's a difference between a simple reply like this one, and putting effort into an actual elaborate explanation. He constantly says retarded shit, so I don't feel like it'd be of any use to actually explain why he's wrong. An interesting discussion is fine, but it's just not going to happen here. I'm sticking around though, because there are interesting discussions going on in the thread besides him.

[Anonymous No.6783175]

[Anonymous No.6783189]

>>6783175

[Anonymous No.6783212]

>>6782718
chug some DayQuil with breakfast.

[Anonymous No.6783765]

>>6779709
>neural networks, which I'm sure we all agree are very reductionist models of neurons and their behavior
As a CS guy I hold that NNs are the worst-named thing in the entire field. Really the only thing they have in common with neurons is that the common illustration looks vaguely like a set of neurons.

[Anonymous No.6784637]

Bump

[Anonymous No.6784701]

what do you guys think of neuropsych?

[Anonymous No.6784733]

>>6784701
Scientific in its basis, much the same as cognitive neuroscience.

[Anonymous No.6786207]

Bump

[Anonymous No.6786212]

Why am I such a whore?

[Anonymous No.6786216]

must be some quantum effects on that particle.

[Anonymous No.6786515]

>>6786212
Because the hedonic value (reflected in phasic dopaminergic release in the ventral striatum) associated with sexual intercourse acts as behavioral reinforcement, whereby repeated intercourse facilitates further enactment of that behavior. Now this is speculative, but it could be that you also have some sort of deficiency in the function o your prefrontal cortex that results in less behavioral control over your impulses, and thus, when in a situation where the choice is between faithfulness and sexual pleasure, you choose the latter.

You dirty slut.

[Anonymous No.6787154]

Bump

[Anonymous No.6787164]

1) How do I improve my impulse control?

2) I took 15-25 mg of adderall every school day from grades 1-12. How might this have affected my neurochemistry?

[Anonymous No.6787509]

>>6787164
>How do I improve my impulse control?

Discipline

[Anonymous No.6787514]

>>6779222
how much of someone's brain can you scoop out without killing them?

[Anonymous No.6787526]

>>6783175
chimpanzee space marines when?

[Anonymous No.6787561]

If I do/take all of this (table 1), could it be healthy for my brain even if I don't have Alzheimer's?

http://www.impactaging.com/papers/v6/n9/full/100690.html
http://www.sciencedaily.com/releases/2014/09/140930143446.htm

[Anonymous No.6787583]

>>6787509
How might that have affected his neurochemistry?

[Anonymous No.6787591]

>>6782804
>>6781555
>>6780200
>>6779681

[Anonymous No.6787612]

>>6779474
You forgot
>be $300,000 in debt
>be in mid 30s by the time you finish residency
>huge chunk of income goes to paying sky high malpractice insurance rates
>have to work super long hours
>will have to live with getting called in at any time without warning because you'll likely be one of three neurosurgeons your hospital has on their payroll.
>very high stress job
>your life will be neurosurgery until you retire/die
>physician reimbursement rates are declining and have been for some time, so you'll be doing all of this for less and less money every year
>you will always be aware that if you had just majored in finance and gotten your MBA you could have been making $400k/year before you were 30, making 7-9 figures after that, and retired a very rich man at 40-45
>god why couldn't you have just gone into finance like Chad, your roommate from senior year. He's probably chilling at his fifth mansion in Aspen right now. Probably has a hot model wife and a couple beautiful kids who call him daddy unlike your kids who call you by your first name
>you could have at least gone into derm or rads! You had the fucking STEP scores damnit, you were AOA, and you even had a fucking publication! You could have had any specialty you wanted and you chose neurosurgery of all things! What the fuck were you thinking?! That people would be impressed? That cracking all those "I guess it took a brain surgeon to do that!" jokes would be worth it? God you were so stupid. Stupid stupid stupid.
>at least you have unmonitored access to propofol and benzos...

[Anonymous No.6788082]

>>6787612

> successful finance guy
> marries
> has kids

Yeah, you're far from the mindset of a successful person.

[Anonymous No.6788704]

>>6779332
Are you speaking sentience or sapience?

[Anonymous No.6788708]

What does modafinil do to increase mental endurance and clarity with little side effects?

[Anonymous No.6788740]

>>6788708

Does it work? Has it been PROVEN to work?

[Anonymous No.6788741]

>>6787612
well on the plus side you will have to retire when you are like 40 so you wont be doing it for all too long

[Anonymous No.6788936]

>>6788740
yes it does work but there are a lot of theories as to why. and answering an question with a question is board-line retarded.

get we get a medfag answer?

[Anonymous No.6790487]

Bump

[Anonymous No.6790498]

Has anyone read Creative Brain? Can you really become better at problem solving by doing thought exercises?

[Anonymous No.6790508]

>>6787514
Have you seen this?
https://www.youtube.com/watch?v=FD8ckoy9NVU

They take out huge chunks after making sure that they don't play a role in the patients ability to count, which kind of seems like a weird metric for deciding the usefulness of brain tissue.

And then there's the girl with half a brain, but that's only possible if you're young.

[Anonymous No.6790656]

I've read about that woman with no fear - some part of her brain was shut down or something. How much a surgery would cost to remove that part from the head?

[Anonymous No.6791012]

>>6790508
>They take out huge chunks after making sure that they don't play a role in the patients ability to count, which kind of seems like a weird metric for deciding the usefulness of brain tissue.
I had a professor talk about this during my cortical neuroanatomy course. When brain surgeons talk about "clinically silent" areas, what they really mean is that the resulting loss of function either takes awhile to show up or is difficult to detect (ex: cutting the corpus callosum causes functional deficits that only show up when depriving a hemisphere of information that the other one has access to, which is a rare situation outside of a laboratory). So essentially you're always going to get fucked up after brain surgery, the only questions are in what ways and whether you'll even notice.

Which brings up something I've always wondered about. If you're having brain surgery and you lose some function or otherwise incurred some permanent mental dysfunction, would you even recognize it as externally induced, or would you think it was a conscious choice? As an absurd illustrative example, let's say you love ice cream before the surgery, but I destroy the part of your brain that makes you like ice cream so now you hate it and I don't tell you that that's what happened (like I said, absurd). Would you realize that the only reason you don't like ice cream anymore is due to brain damage, or would you be thinking "you know, I never realized it before, but ice cream is actually really disgusting"? Just from experiences with psychotropics, I'd imagine it would be the latter, but even then if I told you what happened, would you recognize your new feelings on ice cream as foreign, or would you still perceive them to be your own true feelings? It's a thought that occurs to me every time I lesion brain areas in my rats.

Pic related, one of my rats who's about to find it much harder to develop habits.

[Anonymous No.6791042]

>>6791012
>Pic related, one of my rats who's about to find it much harder to develop habits.
He's just a free-thinker.

But yeah, you always hear about a person with this or that neurological condition claiming that whatever deficiencies they exhibit are actually intentional. Really makes you wonder.

Can't remember any specific cases at the moment, but it's not like I even wanted to!

[Anonymous No.6792486]

Is it possible that self-awareness and subjective conscious experience have something to do with hypercomputation?


Neural networks with irrational weight values can perform super-Turing computations. Such a net could have a complete internal model of itself and all the operations it performs. We know irrational numbers exist IRL (e.g., fractional charge of particles).


Has anyone tried investigating this further?

[Anonymous No.6792585]

>>6787561
Interesting in that though my own study have been taking almost all of these items on this list for a couple of years to one extent or another.

A few notes.. I have found a Mushroom supplement with Lion's mane has the NGF. Circumin as Longvida which has some research behind it showing measured action inside the Brain reducing beta amyloid plaques.. I think its bound with PC (phosphatidylcholine).

Of all this I can see some basis for using In my instance sound sleep is what I lack because I bought a condo 12 years ago I failed to discover was in a mixed light-industrial/residential zone and over the years the town has permitted expansion to the point the HVAC equipment on several manufacturing facilities a mere 800-1,000' away run virtually 24/7 and create such a soul draining whine that it saps my energy and I feel triggers cortisol release..

I can actually feel the increase in tension when I lay down to sleep and am struck my the vibrations coming from these units.. I can feel it in my body as a surge and I flinch at it.. I found from dentist vistits I likley grind my teeth in my sleep so will be getting a night guard until I can refurbish the condo and sell it.

it leaves me so drained from now years of a lack of refreshing sleep in complete quiet I have barely enough energy to work.

pic related: I used to live out here on a Gold Mine 10 miles as the crow flies from the nearest large habitation , the small town of Mariposa,CA . The nearest city was 40 miles away; Merced or Modesto.

The only thing I'd hear when going to sleep was the wind bristling through the Ponderosa Pines.. I could scrap all the sups if I could sleep in that tranquility.

[Anonymous No.6792597]

>>6792486
It's tempting to try to explain one thing you don't fully understand with another thing you don't fully understand but you must resist that urge.

[Anonymous No.6792625]

>>6792597
I'm only curious if a link exists (for the abovementioned reason) and if it has been pursued further. I never said anything about an explanation.