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Scientists Identify the Brainís Activity Hub
NY Times ^ | July 1, 2008 | BENEDICT CAREY

Posted on 07/01/2008 8:05:21 PM PDT by neverdem

The outer layer of the brain, the reasoning, planning and self-aware region known as the cerebral cortex, has a central clearinghouse of activity below the crown of the head that is widely connected to more-specialized regions in a large network similar to a subway map, scientists reported Monday.

The new report, published in the free-access online journal PLoS Biology, provides the most complete rough draft to date of the cortex’s electrical architecture, the cluster of interconnected nodes and hubs that help guide thinking and behavior. The paper also provides a striking demonstration of how new imaging techniques focused on the brain’s white matter — the connections between cells, rather than the neurons themselves — are filling in a dimension of human brain function that has been all but dark.

In previous studies, scientists have used magnetic resonance imaging to identify peaks and valleys of neural activity when people are doing various things, like making decisions, reacting to frightening images or reliving painful memories. But these studies, while provocative, revealed virtually nothing about the underlying neural networks involved — about which brain regions speak to one another and when. Previous estimates of network structure, based on such imaging, have been sketchy.

The new findings, while not conclusive, give scientists what is essentially a wiring diagram that they can test and refine.

“This is just about the coolest paper I’ve seen in a long time, and forward-looking in terms of where the science is going,” said Dr. Marcus E. Raichle, a professor of neurology and radiology at Washington University in St. Louis, who was not involved in the research. He added, “They’ve found in the brain what looks like a hub map of the airline system for the United States.”

In the study, a collaboration that included the University of Lausanne in...

(Excerpt) Read more at nytimes.com ...


TOPICS: Culture/Society; News/Current Events; Technical
KEYWORDS: bluebrain; darpa; diffusionspectrum; dsi; imaging; neurology; neuropsychology
Mapping the Structural Core of Human Cerebral Cortex
1 posted on 07/01/2008 8:05:21 PM PDT by neverdem
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To: Polybius

You might be interested in this paper linked in comment# 1.


2 posted on 07/01/2008 8:07:33 PM PDT by neverdem (I'm praying for a Divine Intervention.)
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To: neverdem
That's okay, we already know what the insides of a liberal Democrat's mind are for.


3 posted on 07/01/2008 8:08:42 PM PDT by rabscuttle385 ("Facts are stubborn things." ¬ĖRonald Reagan)
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To: neverdem

***“They’ve found in the brain what looks like a hub map of the airline system for the United States.”***

So what you’re saying is that our brain is “never on time, a total mess of a system and needs a massive overhaul”?

That’s depressing.


4 posted on 07/01/2008 8:11:00 PM PDT by max americana
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To: neverdem

Ping me when they find the Pontifical Neuron.


5 posted on 07/01/2008 8:12:47 PM PDT by Rudder
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To: max americana

LOL!


6 posted on 07/01/2008 8:13:02 PM PDT by doc1019 (I was taught to respect my elders, but it's getting harder to find one.)
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To: neverdem

***Scientists Identify the Brain’s Activity Hub***

Isn’t that found behind the zipper?


7 posted on 07/01/2008 8:19:35 PM PDT by irishtenor (Check out my blog at http://boompa53.blogspot.com/)
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To: Rudder
Ping me when they find the Pontifical Neuron.

How about mirror neurons?

SINGLE-NEURON THEORY OF CONSCIOUSNESS

8 posted on 07/01/2008 8:32:49 PM PDT by neverdem (I'm praying for a Divine Intervention.)
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To: irishtenor

When a female is after the males credit card? Yes.


9 posted on 07/01/2008 8:35:28 PM PDT by Michael Barnes
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To: neverdem

Neurologists would have a fun time trying to find out how my brain works.


10 posted on 07/01/2008 8:38:20 PM PDT by wastedyears (Obama is a Texas Post Turtle.)
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To: wastedyears
Based on screen name alone, I am not going to bet against those odds.

;-)

11 posted on 07/01/2008 8:39:40 PM PDT by Michael Barnes
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To: neverdem

Ping for later


12 posted on 07/01/2008 8:52:57 PM PDT by infool7 (Ignorance isn't bliss its slavery in denial)
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To: Michael Barnes

I’m only turning 23 in October, but yeah, there’s a few.


13 posted on 07/01/2008 8:58:49 PM PDT by wastedyears (Obama is a Texas Post Turtle.)
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To: El Gato; Ernest_at_the_Beach; Robert A. Cook, PE; lepton; LadyDoc; jb6; tiamat; PGalt; Dianna; ...
PATIENT IGNORED TO DEATH (KINGS COUNTY HOSPITAL OUTRAGE)

Condiment nazis? Send them to the salt mines!

Gator Blood Destroys Deadly Superbugs

FReepmail me if you want on or off my health and science ping list.

14 posted on 07/01/2008 9:03:29 PM PDT by neverdem (I'm praying for a Divine Intervention.)
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To: neverdem

The universe within the universe.


15 posted on 07/01/2008 9:28:28 PM PDT by onedoug
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To: neverdem

Bump for later


16 posted on 07/01/2008 9:46:51 PM PDT by HeartlandOfAmerica (Don't blame me - I voted for Fred and am STILL a FredHead and will write him in!)
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To: neverdem

Yeah, that’s what I’m talking about, especially the Single-Neuron Theory of Consciousness. Along the way I had the good fortune to work with both E. Roy John and Eliot Valenstein, and this topic was our most heuristic one.


17 posted on 07/01/2008 9:55:48 PM PDT by Rudder
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To: neverdem

http://www.offthemarkcartoons.com/search-results/key/brain/


18 posted on 07/01/2008 10:39:37 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_________________________Profile updated Friday, May 30, 2008)
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To: SunkenCiv

LOL! Thanks for the link.


19 posted on 07/01/2008 11:23:43 PM PDT by neverdem (I'm praying for a Divine Intervention.)
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