IT'S FIVE YEARS LATER CAN WE HAVE AN UPDATE PLEASE

At 0:30 the arrow pointed to a dendrite not the axon, the axon is the long one with the myelin sheath.

Hank Green, you have reduced my productivity to about 2%. Damn you.

@stuartclifton4764

3 жыл бұрын

just found this through university resources and didn't expect to see another legend here!

did that video just have and arrow pointing to a dendrite labelled "axon"

@MissBrri

10 жыл бұрын

Yes it did.

@Edgewalker001

10 жыл бұрын

Yup, it's not even an easy mistake to make.

you labeled the dendrite, not the axon:)

What you're pointing to in the animation are dendrites not "Axons". The axon is the tail like part on the other side of the cell body that's covered in myeline sheath and stretches to the synaptic terminals.

I am so, so glad that you did a video about this! Please do more neuroscience-based videos, there's so much to explore!

I LOVE THE WAY YOU ANNUNCIATE YOUR WORDS!!!

That was the dendrite

In the next five years we might have a generalized composite of several different people's connectomes, just like when the human genome project was completed, it wasn't one person's genome they mapped, it was several. For it to be a truly complete connectome, you need to map the entire axon architecture of an entire individual human brain. And with that, if you understand the ontology of neuron language, you could effectively know that person intimately. Their soul, their total identity, every memory, every desire, every dream, every emotion. All on a thumb drive.

@DeimosSaturn

10 жыл бұрын

But how many bits of data are really needed to encapsulate the entire identity of a person? How many bits of data corresponding to computer bits are stored on a human brain? I've heard everything from "infinite" to thousands of terabytes to less than 2 gigabytes.

Thanks Hank (and the the rest of your team) for making me smarter every day! It's so much fun to be reminded by you guys how much awesome discoveries are being made. I get an energy boost every time I watch scishow - even if the news is'nt so great... like the plastic soup in the Pacific.

I'm so excited you actually talked about the connectome!

Ah, the brain's never-ending quest to understand itself. Unfortunately, it probably never will.

@C46000

8 жыл бұрын

+The Walking Dead Governor lol what?

@MJ-om5go

8 жыл бұрын

Untrue. We will understand it. The world only moves forward.

@davidedwards1953

7 жыл бұрын

well its main root is in quantum , so it and us might never know.

So only 1 more year left for it to be complete?

@peterbonnema8913

8 жыл бұрын

Just what I thought :D:D:D

This is so cool. Thanks for ensmartening us, Hank!

i seriously have never heard of any of those. thank you so much! i'll definitely check them all out!

Your arrow pointed to the dendrites instead of the axon lol :P

@ericreynolds4028

7 жыл бұрын

and there is only one axon, not axon"S"

anyone realize "connectome" is damn close to connect-to-me?

@ms.turquoise6341

7 жыл бұрын

I thought of connecticut

great series man!

MUSE and Sci Show in one video. My dream come true. (Though MUSE weren't actually mentioned in the video, they used the Human Connectome Project as a general cover for their new album and also, I love the brain so this is currently my favourite video on KZread)

We are decades off of making a connectome, mapping the structure of neurons. Too much data. To do one one thousandth of a mouse brain takes 2 million gbs of data.

i take it this this guy doesn't believe in souls,just science..

@dominikm.8990

7 жыл бұрын

its scishow not soulshow or spiritshow aint nobody got time for dat.

@davidedwards1953

7 жыл бұрын

actually no , check his soul channel aswell.

wow... that's actually incredible. I can't wait to see further research on this.

I haven't heard of the human connectome before, thanks for making me smarter Hank and other scishow workers! :D

awesome as always.

I am so excited about this!

I'm not a naturally logical person, but the way you explain all this science stuff makes it so much easier to understand than when my teachers try to tell me! Thanks, guys! :)

Thank you for these wonderful entertaining and informative videos.I love your channel

That made me super happy. I love brain science! Scishow is really a great news source, thanks Hank.

Combining the results of the human connectome project with the results of the human genome project can and will lead to advances in science on the next level. I am very excited to see what we'll be able to achieve with this knowledge.

As a student of neuroscience, I will never stop being amazed.

PLEASE KEEP US UPDATED ON THIS, also can you make a video on grey matter purely - like what its made of (in more detail) etc etc

Wow, this is simply amaizing!

this is the best KZread channel ever

This is incredible. It's honestly something straight out of science-fiction, like Halo or EVE Online or Total Recall. This may be one of the most important projects in human history, next to the Human Genome project.

The designer of the human brain is really amazing

This is an awesome video Hank, thanks for posting it. I hadn't heard about it at all until now. I wonder if the nature of the fibers (density, orientation, function) is consistent between different people and beliefs.

If I recall correctly, I think you're right. Myelinated axons are there to be able to send signals faster due to the increased circumference. Thus, there can be unmyelinated axons in different organisms that don't require fast action potential propagation. **CNS myelin sheath arise from oligodendrocites **PNS myelin sheath arise from Schwann cells

For someone who is planning on studying the brain (or at least the pharmacology of it) for the rest of her foreseeable life, I was strangely ignorant of this. Thank you, SciShow! Also, that's a dendrite, not an axon that was labelled.

I would like to see a video specifically on Pyromania. Why do pyromaniacs lack impulse control? What causes it? What are the underlying principles defining it's behavior and how can those affected with this mental disorder possibly be helped?

Yeah. Perhaps it was the philosophies I was taught about the world around me, that I was trying to expand and stretch out to fit something so much bigger until it was too thin, so that I could work on my scientific potential and keep those comforting concepts of some cosmic benevolence with me. But yes, I also understand what you were showing me. Having benefited from it, I thank you for the conversation. =)

I loved this video! So good.

This is freaking awesome!

You have no idea how much I have dreamt of learning about this, especially in relation to language. If anyone knows any way I, a high school student, can get in on this research somehow that would be unimaginably awesome.

It's comforting to know that science and religion are coming more together as we learn more about the world we live in.

Thanks for the lead in! :D.

When I first saw the title, in my head I pronounced it "connect-o-mee," and since the thumbnail had a picture of a brain, I thought the video was going to be about getting your brain connectors removed. In my psychology class last semester, we learned about how, if you remove the stuff that connects the halves of your brain together, each half of your brain will think and control your body independently. So, yeah, that's what I thought this was going to be about. I was really excited for it, too

@ DeimosSaturn I'm not sure exactly how many people were tested in the Human Genome Project, but I know it was Way more than several. There was so much data being gathered, that when they first started the project, there wasn't a computer in existence that could process all the data. Glad they got that worked out though.

Well said!

Why have I not heard anything about that, and that's really really cool, now I need to go check out the connectome

I love the comments to sci show videos. All the smart and thoughtful comments give me more confidence in the human race.

did ANYONE watch John Green's video about how to argue on hank games? i seriously think that would be helpful here. and this video is amazing i love stuff like this, thanks to you Hank and a couple other science teachers i've had, i know about the cool science that makes all the entry level science worth it haha :) love science. just love it, it's so crazy!

That is frickin beautiful!

vid was awesome (especialy the pics.)

So yeah about ten seconds in I already favorited. This is so cool!

Thank you for the general idea :).

There's many sides to it. For me it's the comforting belief that the universe is not a heartless place where humans can only hope to comprehend the workings of a giant machine that will never acknowledge us and could as easily collapse on itself. The thought that there is a benevolent presence that looks on with warmth in this expanse of physics and matter is something. Because the universe is the definition of awesome, and not the watered-down version. It's overwhelming as it is beautiful.

Mind blowing. No wonder our human brains naturally look for patterns and lines! That's all we know! We are literally made of right angles.Mind Blowing. Thanks, Hank!!

awesome Muse album cover is the Human Connectome. i didnt know that on till this video. thanks

That logic is sound, but I've heard countless times that data in the brain can be rearranged to essentially compress data, using less neurons yet more connections, in order to "store more data in less space" if needed. Then again, your logic would also apply to these compressed regions of data, since there is still a finite quantity of neural matter which can be reorganized in one brain.

Mind Blown

That's really neat that they were able to get a better look at how the brain works. I'd be very interested in seeing such images of the connectome of brains that have abnormalities, like those of people with schizophrenia.

Especially the working together part... We use standardized methods so that we share and improve knowledge and let what we did open for critique.

love sci show

This is used on the new MUSE album! Thanks for explaining it Hank =]

You are amazing enough to make both top comments without making a witty joke, stating the obvious, or asking for thumbs up and for that, i congratulate you and give you a pat on the back via the internetz. ;P lol

Very interesting!

Wow, that was kinda mind blowing about the neurons lining up so complex,

Holy snood this is so cool!

Best argument to use when someone says "oh it's too perfect" is to ask "how do you know? what are you comparing it to that makes you think it is perfect?"

Good point, it's just important to be able to tell them apart. Axons(outgoing info)=insulated with myeline, *generally* longer and just one Dendrites(incoming info)=the branchy-looking things pointed to in the video, shorter, lots of them. Wooo biology!!

That's very correct. I like the smiley after the comment about burning and killing.

Yes! That was something I noticed as well. I hope they fix it!

I was literally just about to post that when I saw your comment.

The "long branches" pointed to at :31 are dendrites, not axons. An axon is the part that comes off of the cell body down which an action potential travels before reaching the terminal branches. They give the neuron its length and are surrounded by myelin sheaths, represented by yellow in that image. While both are incredibly important to electrical transfer within the brain, they are not interchangeable.

I am in complete agreement with you

0:50 A+ super accurate depiction of brain.

Thank you for the correction!

The whole 90 degrees thing just makes sense. It's electrical current. When crossing wires in a sensitive system (my reference would be a sound setup for a small concert with lots of speakers and amplifiers) the wires must be crossed at 90 degree angles to prevent interference. It's awesome to think nature figured that out, too!

I was going to comment, but you did a good job!

It makes sense that they would overlap at 90 degree angles, when you deal with the currents in cables, you also want to intersect them at those angles too. This decreases the chance of information being disrupted or disturbed.

In the video the thing you labeled as axons are actually dendrites. The axon is the big long one with the myelin sheath on it.

THIS IS SO COOL!

I like the new term you brought up, "deist position". I feel like I'm currently in that stance, but I'm subject to change.

i am so glad i found this channel ahhh

Once they get a baseline for this, it'd be interesting to see how these lines might be rearranged in people who have had concussions, or paraplegics in various stages of relearning to walk.

Awesome, totally awesome.

Simplicity is complex and simple. Complexity is simple and complex.

How does this not have more views?

This is why I'm studying neuroscience. Love.

The primary answer to why there is an absence of stars in many space photographs is simple: the reflection of the sun off the Earth (or off the moon) are so much brighter than the stars in the background that the shutter speed of the cameras is made to be very fast in order to avoid overexposure. The relatively dim light emitted from the stars do not have time to expose the film. Even similar photos taken nowadays by Mir, the ISS, or the Space Shuttle will have similar attributes (no stars).

Thank you ...

Thanks to SciShow, I felt like a smarty when I recognized Muse's new album artwork. It's the Human Connectome!! booyah

When describing the different parts of the neuron, you incorrectly identified a dendrite as an axon. The small branches coming off the cell body are dendrites (how the neuron receives information from other neurons), and the axon is the long protrusion (going from right to left along the screen) that allows the neuron to relay its own message elsewhere.

hey! it's been five years! I neeed it!

The axon is the long part, with the yellow dots along it. The electrical impulse travels from the dendrites and then along the axon to the axon terminals at the other end. The yellow parts are called schwann cells and they act as insulation for the electrical impulses.

i would love to see more chemistry news, like environmental or not. the field im currently studying in school is nano chem

already engaged and finished, my friend

The axon is the long part with the oblong shapes on it. Despite what the video implies, each neuron only has one axon. If you find CrashCourse's "The Nervous System" video, you can learn about neurons starting at about 6 minutes. (I'd link you but KZread keeps giving me an error--I apologize.)

This makes me so excited :D I thought it'd be a very long time still before this type of research would be completed! And for it to be so much more simplistic than previously thought is exhilarating, considering 10 years ago our brains might as well have been the same thing as a plate of spaghetti. 5 years from now things will be so awesome! xD