Deconstructing Brain Wiring, One Neuron at a Time


	Deconstructing Brain Wiring, One Neuron at a Time

wildcat

3-2-2007 5:49 AM

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tags:

science, research, brain, neurology, interconectivity

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/acb809aa-5a6c-4ed9-bb66-c39081ce0049/F4B7FC61-ADA7-4C8A-B1FD-BB852EB3F9AD/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://physorg.com/news91958783.html" href="http://physorg.com/news91958783.html" style="font-size: 11px;">physorg.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://physorg.com/news91958783.html"><H1>Deconstructing Brain Wiring, One Neuron at a Time</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://physorg.com/news91958783.html"><DIV id="Preview"> 
Researchers have long said they won’t be able to understand the brain until they can put together a “wiring diagram” – a map of how billions of neurons are interconnected. Now, researchers at the Salk Institute for Biological Studies have jumped what many believe to be a major hurdle to preparing that chart: identifying all of the connections to a single neuron.
</DIV></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://physorg.com/news91958783.html"><DIV> 
In the March 1 issue of the journal <I>Neuron</I>, the researchers describe how they modified the deadly rabies virus, turning it into a tool that can cross the synaptic space of a targeted nerve cell just once to identify all the neurons to which it is directly connected.
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							“We’ve wanted to do this for a very long time and finally found a way to make it possible,” says the study’s senior author, Edward M. Callaway, Ph.D., a professor in the Systems Neurobiology Laboratories. “It will offer us an unprecedented view of the brain.”
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