Saturday, January 11, 2014 · Posted by Maria Konnikova, New York Times
Sleep, it turns out, may play a crucial role in our brain’s physiological maintenance. As your body sleeps, your brain is quite actively playing the part of mental janitor: It’s clearing out all of the junk that has accumulated as a result of your daily thinking.
Thursday, October 10, 2013 · Posted by Forschungszentrum Juelich
Jülich neuroinformatician Dr. Markus Butz has now been able to ascribe the formation of new neural networks in the visual cortex to a simple homeostatic rule that is also the basis of many other self-regulating processes in nature. With this explanation, he and his colleague Dr. Arjen van Ooyen from Amsterdam also provide a new theory on the plasticity of the brain – and a novel approach to understanding learning processes and treating brain injuries and diseases.
Wednesday, January 9, 2013 · Posted by Georgetown University Medical Center
Scientists have long wondered how nerve cell activity in the brain’s hippocampus, the epicenter for learning and memory, is controlled too much synaptic communication between neurons can trigger a seizure, and too little impairs information processing, promoting neurodegeneration. Researchers at Georgetown University Medical Center say they now have an answer. In the January 10 issue of Neuron, they report that synapses that link two different groups of nerve cells in the hippocampus serve as a kind of “volume control,” keeping neuronal activity throughout that region at a steady, optimal level.