The Bernstein Center for Computational Neuroscience Freiburg

Announcement for the next
Informal Seminar
Christian Meisel
MPI Dresden

Self-organized criticality in neural networks

Tuesday, November 25th, 2008
16:00 h sharp
Library, 1st floor
BCCN Building
Hansastr. 9a
We evolve a network of excitatory and inhibitory leaky integrate-and-fire neurons according to two slow-changing rules of synaptic plasticity: spike-time dependent plasticity (STDP) and homeostatic synaptic plasticity (HSC). Both rules lead to the convergence to an average number of synapses per neuron comparable to the one observed in cortical networks. At this evolved connectivity, we find power law distributions for avalanches and amplitudes of activity with critical exponents closely resembling those found in real cortical networks.
The talk is open to the public. Guests are cordially invited!