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Whole human brain mapped in 3D

nature.com

21–30 of 38 posts

Re: Whole human brain mapped in 3D

#21

Earlier quoted context omitted.

Metric won that war ;-) http://simple.m.wikipedia.org/wiki/Megabyte

Wikipedia is not a source~

For proof that Wikipedia is more accurate than other encyclopedias, check out http://en.wikipedia.org/wiki/Reliability_of_Wikipedia

(Though seriously, Wikipedia is about as accurate as the Encyclopedia Brittanica, at least for science articles: http://www.nature.com/nature/journal/v438/n7070/full/438900a...)

Re: Whole human brain mapped in 3D

#22

Earlier quoted context omitted.

Metric won that war ;-) http://simple.m.wikipedia.org/wiki/Megabyte

Wikipedia is not a source~

I dislike when people say this. No Wikipedia in itself is not a source, but it's usually an aggregate of sources. If you scroll to the bottom of the article, if it's properly labelled up you can find the exact sources for everything said.

Re: Whole human brain mapped in 3D

#23

Earlier quoted context omitted.

Wikipedia is not a source~

I dislike when people say this. No Wikipedia in itself is not a source, but it's usually an aggregate of sources. If you scroll to the bottom of the article, if it's properly labelled up you can find the exact sources for everything said.

I scrolled to the bottom. The page had no sources. Then I went to the main English wikipedia page to get some sources, but apparently it completely disagrees with the simple English page.

The real megabyte page says that it has multiple meanings, and the mebibyte page says that "it was designed to replace the megabyte" and that "it is not commonly used". And I'll assume the sources listed are suitable for the moment.

Re: Whole human brain mapped in 3D

#24

Earlier quoted context omitted.

Wikipedia is not a source~

For proof that Wikipedia is more accurate than other encyclopedias, check out http://en.wikipedia.org/wiki/Reliability_of_Wikipedia (Though seriously, Wikipedia is about as accurate as the Encyclopedia Brittanica, at least for science articles: http://www.nature.com/nature/journal/v438/n7070/full/438900a... )

That applies well to en.wikipedia.org, not as much to simple.wikipedia.org. See my reply to andyhmltn about how the properly researched page disagrees with the grandparent's link.

Don't trust a wikipedia page that has zero citations.

Re: Whole human brain mapped in 3D

#25

I'd love for a neuroscientist to weigh in on this - what is the possibility that something like this could be used to generate an artificial neural network which imitates, even crudely, the functions of the human brain?

Not a neuroscientist, but used to work in the field, and my first idea was "well by cutting it up, they also cut all connections". And those connections are far more important for understanding how the brain works than seeing where an individual neuron is physically located. Unless off course they can somehow get the connections out of it.

Re: Whole human brain mapped in 3D

#27
It seems like each brain is unique and it is meaningful to speak only about "connections" between regions and areas, given that even structure of nerves are different from person to person.

And, of course, it isn't even near to what we could call a "working model". Just a mapping of every neuron of some particular brain specimen. No one understands how it works yet. There are detailed description in textbooks of how each kind of cells in the brain works, but still can't see the mind among neurons.))

Re: Whole human brain mapped in 3D

#28
I am wondering how can you work with a 3D model with a file size of 1 TB ? Does it require custom software to deal with such a large data ?

EDIT: Perhaps its similar to google maps, where 3D "tiles" are loaded as required as you zoom in or out.

Re: Whole human brain mapped in 3D

#29
Shameless plug: 3Scan [1], a company spun off from a university in Arizona (if I'm not mistaken) and partially funded by Peter Thiel's Breakout Labs grant is making a robot that is capable of doing this entire procedure with absolutely minimal human involvement.

They can already do a full 3d map of blood vessels and neurons (with stains) in a mouse brain within a few days and store it on a TB hard drive (I'm told an equivalent for the human brain would be a petabyte but their slices might be thinner). This is a procedure that would take months if not years to do by hand (they do a full analysis on all of the slices to reproduce a 3d model afterwards).

This paper was done mostly by hand but soon we'll be able to do it quickly and automatically.

[1] http://www.3scan.com/

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