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This is an update to a previous Neuron News posting reviewing a new whole brain imaging technique--called Diffusion Spectrum Imaging--that tracks the flow of water molecules through axons to map neural interconnectivity. The research group has completed the imaging on a marmoset monkey, and the full three-dimensional animation of the result is now presented online.
The map was produced from a 24-hour scan of a dissected brain with a spatial resolution of 400 microns. View the animation and look closely at all of the intricate fiber pathways and interesting network patterns that are present. The level of complexity is not close to that of a human, but the system is certainly complex enough to begin the work on detailing the network to further understand brain function.
To be clear, each visualized pathway in the map does not represent a single axonal strand. However, it corresponds to hundreds of thousands of fibers that are all networked in approximately the same direction. So, this imaging technique does not resolve the network down to each individual connection, but an averaged view of large groups of connections.
"The Brain Unmasked" :: Technology Review by MIT :: August 6, 2008 :: [ READ ]
Slide show of Monkey Brain Scanned with DSI [ VIEW ]
Video Animation of 3D Results [ VIEW ]
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Written by Matthew T. Dearing | Article Link |
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How good are my chances of landing at Suvarnabumi airport in Bangkok on Wednesday morning? My flight leaves from London at 10:35 pm Sunday EST and is due to arrive at Bangkok International at about 6 am Bangkok time. With all the protests and what not, what do you think my chances are of my flight not being cancelled and the red shirts to have moved out by then? I'm pretty sure they're low, but I'd like your opinion :) I really don't want to cancel my flight, it was due to leave soon!