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Out of mind in a matter of seconds
Date:1/24/2011

This release is available in German.

The dynamics behind signal transmission in the brain are extremely chaotic. This conclusion has been reached by scientists from the Max Planck Institute for Dynamics and Self-Organization at the University of Gttingen and the Bernstein Center for Computational Neuroscience Gttingen. In addition, the Gttingen-based researchers calculated, for the first time, how quickly information stored in the activity patterns of the cerebral cortex neurons is discarded. At one bit per active neuron per second, the speed at which this information is forgotten is surprisingly high. Physical Review Letters, 105, 268104 (2010)

The dynamics behind signal transmission in the brain are extremely chaotic. This conclusion has been reached by scientists from the Max Planck Institute for Dynamics and Self-Organization at the University of Gttingen and the Bernstein Center for Computational Neuroscience Gttingen. In addition, the Gttingen-based researchers calculated, for the first time, how quickly information stored in the activity patterns of the cerebral cortex neurons is discarded. At one bit per active neuron per second, the speed at which this information is forgotten is surprisingly high. Physical Review Letters, 105, 268104 (2010)

The brain codes information in the form of electrical pulses, known as spikes. Each of the brain's approximately 100 billion interconnected neurons acts as both a receiver and transmitter: these bundle all incoming electrical pulses and, under certain circumstances, forward a pulse of their own to their neighbours. In this way, each piece of information processed by the brain generates its own activity pattern. This indicates which neuron sent an impulse to its neighbours: in other words, which neuron was active, and when. Therefore, the activity pattern is a kind of communication pr
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Contact: Dr. Fred Wolf
fred@nld.ds.mpg.de
49-551-517-6419
Max-Planck-Gesellschaft
Source:Eurekalert  

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