Seminars of the Focus Area Complex Systems

Prof. Dr. C. Beta, Prof. Dr. K. Dethloff, Prof. Dr. R. Engbert, Prof. Dr. M. Holschneider, Prof. Dr. W. Huisinga, Prof. Dr. Ralf Metzler, Prof. Dr. A. Pikovsky, Prof. Dr. S. Reich, Prof. Dr. M. Rosenblum, Prof. Dr. G. Rüdiger, Prof. Dr. T. Scheffer, Prof. Dr. F. Scherbaum, Prof. Dr. J. Selbig, Prof. Dr. F. Spahn


Speaker: Changsong Zhou, Department of Physics, Centre for Nonlinear Studies, Institute of Computational and Theoretical Studies, Hong Kong Baptist University and Beijing Computational Science Research Center, Beijing, China

Title: Cost-efficiency in neural representations * Oberseminar Nichtlineare Dynamik

Time: Thu, Oct 8, 2015, 2pm

Place: bldg 28, room 2.123

Brains are believed to be capable of information processing with remarkable efficiency but low metabolic cost. Cost-efficiency of neural representation, as an underlying design principle, may be reflected in the co-organization of ubiquitously observed cortical activity: irregular firing, synchronized oscillations and neuronal avalanches. Here we provide computational evidence that these salient features of cortical activity can be simultaneously accounted in a generic neural circuit capturing the excitation-inhibition balance with realistic synaptic dynamics. Their simultaneous organization achieves maximal information efficiency and minimal firing rate when individual irregular firings are coordinated as well as shaped by moderate synchrony to reduce otherwise redundant spikes. Such cost-efficient dynamical modes could be employed as a foundation for further efficient information processing with low energy cost.


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Past NLD Seminars (1994-2007) & (2008 ...)

Students' seminar: Theoretical Physics, PIK, Modeling & TSA Berlin-Potsdam-Colloquia: PhysGesellschaft Berlin, TU Berlin, Pro Physik, AIP, AEI, MPI-KGF, GFZ, HMI, PIK, AWI, Max Planck Institute for the History of Science, Mathematik, DPG Disputationen, & Vorschau UP

Udo Schwarz, Zentrum für Dynamik komplexer Systeme,
Universität Potsdam, Campus Golm Karl-Liebknecht-Str. 24, 14476 Potsdam, building 28, room 2.107
Phone: (+49-331) 977-1658, Fax : (+49-331) 977-1045

Email: Udo.Schwarz AT

DFG SFB 1294

DFG Sonderforschungsbereich 1294 Data assimilation

DFG SPP 1488

DFG Schwerpunktprogramm 1488 Planetmag

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