تبلیغات
Scientific - Brain connections like the Internet
شنبه 13 شهریور 1389

Brain connections like the Internet

   نوشته شده توسط: فریده جلیلوند    

 

 

Brain connections like the Internet

 

LOS ANGELES (UPI) -- A U.S. study of brain circuitry suggests neural connections are democratic, a task-sharing network of equality rather than a top-down pyramid model

The University of Southern California study contradicts traditional views that the brain is organized as a hierarchy, with most areas feeding into the "higher" centers of conscious thought,
ScienceDaily.com reported Monday

The study lends support to a more recent model of the brain as a flat network similar to the Internet, where all of the parts talk to each other directly and equally

Until recently the network of brain connections was thought too complex to describe, but molecular biology and computing methods have made it possible for the National Institutes of Health to announce a $30 million
plan to map the human "connectome," similar to the effort that mapped the human genome

USC scientists studied rat brains to trace their circuitry

"We started in one place and looked at the connections," neuroscientist Larry W. Swanson said. "It led into a very complicated series of loops and circuits

"It's not an organizational chart. There's no top and bottom to it," he said

The "Internet" model would explain the brain's ability to overcome a lot of local damage, Swanson said. "You can knock out almost any single part of the Internet and the rest of it works"

Similarly, Swanson said, "There are usually alternate pathways through the nervous system. It's very hard to say that any one part is absolutely essentia
l"

 

 

ArcaMax Science & Technology Ezine


maryam
یکشنبه 14 شهریور 1389 11:38 ب.ظ
salam
web ke baz kardam vahshat kardam
maryam
یکشنبه 14 شهریور 1389 11:38 ب.ظ
salaaaaaaaaaaaaaam
webo k baz kardam vahshat kardam
 
لبخندناراحتچشمک
نیشخندبغلسوال
قلبخجالتزبان
ماچتعجبعصبانی
عینکشیطانگریه
خندهقهقههخداحافظ
سبزقهرهورا
دستگلتفکر