Registration , Opening Ceremony and Press Conference

only in the printed version... INS 2002 Schedule andd Abstracts 19 Fr. 14:45, Ad Aertsen (Main Talk): Neural Dynamics in cortical networks: Precision and Variability Albert-Ludwigs-University Neurobiology and Biophysics, Institute of Biology III, Schänzlestrasse 1, D-79104 Freiburg, Germany Studies of cortical network function on the basis of multiple single -neuron recordings have revealed neuronal interactions which depend on stimulus and behavioral context. These interactions exhibit dynamics on several different time scales, with time constants down to the millisecond range. Mechanisms underlying such dynamic network organization are investigated by experimental and theoretical approaches. Our current research focuses on two interrelated aspects: precision and variability of cortical network activity. Starting from previous model work, in which we investigated conditions for the occurrence of precise joint-spiking events in cortical network activity, I will discuss recent findings from ongoing experimental and theoretical work in our laboratory, undertaken to test and expand some of these model predictions. INS 2002 Schedule andd Abstracts 20