The Brain's Dark Energy and the Default Mode Network

Saturday, February 16, 2013
Room 304 (Hynes Convention Center)
Marcus E. Raichle , Washington University, St. Louis, MO
Studies of brain function using positron emission tomography as well as functional connectivity magnetic resonance imaging have revealed that the brain receives the most blood flow of any organ and utilizes a similar amount of energy whether it is involved in a specific cognitive task or not. A brain network that is highly active when the brain is not performing a specific task has been termed the default mode network. This network is highly vulnerable to the pathology of Alzheimer’s disease.