Detail Hard Cell; The Brain Activity Map   Oleh:  [s.n] Jenis: Article from Bulletin/Magazine Dalam koleksi: The Economist (http://search.proquest.com/) vol. 406 no. 8826 (Mar. 2013), page 75-76. Topik: Brain Research; Medical Imaging; Neurons; Government Spending Ketersediaan Perpustakaan Pusat (Semanggi) Nomor Panggil: EE29.75 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada     Lihat Detail Induk Isi artikel News of what protagonists hope will be America's next big science project continues to dribble out. A leak to the New York Times, published on February 17th, let the cat out of the bag, with a report that Barack Obama's administration is thinking of sponsoring what will be known as the Brain Activity Map. And on March 7th several of those protagonists published a manifesto for the project in Science. The purpose of BAM is to change the scale at which the brain is understood. At the moment, neuroscience operates at two disconnected levels. The higher one, where the dimensions of features are measured in centimetres, has many techniques at its disposal, notably functional magnetic-resonance imaging (fMRI), which measures changes in tissues' fuel consumption. This lets researchers see which bits of the brain are active in particular tasks--as long as those tasks can be performed by a person lying down inside a scanner. At the other end of the scale, where features are measured in microns, lots of research has been done on how individual nerve cells work, how messages are sent from one to another, and how the connections between cells strengthen and weaken as memories are formed. Between these two, though, all is darkness. Opini Anda Klik untuk menuliskan opini Anda tentang koleksi ini! Kembali

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