Scientists provide first detailed maps of wiring circuitry in the living human brain

John johnhkm at netsprintXXXX.net.au
Sat Sep 4 05:12:14 EST 1999


Scientists provide first detailed maps of wiring circuitry in the living
human brain


--
St. Louis, Aug. 31, 1999 -- Researchers have developed a way to visualize
nerve fiber bundles that transmit information between different areas of the
living human brain. Their study provides new information on the orderly
pattern of these fiber connections and may one day lead to improvements in
brain surgery, diagnosis of brain ailments, and understanding of
neurological diseases.

--
The study, published in today's issue of Proceedings of the National Academy
of Sciences, also may provide a way to tell if behavioral differences among
people partly result from differences in the way their brains are wired.
Conturo, the lead author, also notes that wiring diagrams could be used to
study how the recently recognized process of "re-wiring" occurs in brain
ailments such as stroke.


--
Finally, the researchers identified complicated connections between several
brain areas involved in higher level thinking skills such as speaking,
paying attention, and multiplying numbers. The fiber bundles that connected
to different brain areas often ran side-by-side to form larger cables
without mixing their wires, like driving onto a highway from an on-ramp
having its own lane. "We were surprised and excited to find that the brain
circuitry was wired in such an orderly fashion," Conturo says
--
http://www.eurekalert.org/releases/wusm-spf083099.html
--






More information about the Neur-sci mailing list