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Summary: LETTER Communicated by Ad Aertsen
Memory Capacity of Balanced Networks
Yuval Aviel
yuval@alum.cs.huji.ac.il
Interdisciplinary Center for Neural Computation, Hebrew University, Jerusalem, Israel
David Horn
horn@post.tau.ac.il
School of Physics and Astronomy, Tel Aviv University, Tel Aviv, Israel
Moshe Abeles
abeles@hbf.huji.ac.il
Interdisciplinary Center for Neural Computation, Hebrew University, Jerusalem, Israel
We study the problem of memory capacity in balanced networks of spik-
ing neurons. Associative memories are represented by either synfire
chains (SFC) or Hebbian cell assemblies (HCA). Both can be embedded
in these balanced networks by a proper choice of the architecture of the
network. The size wE of a pool in an SFC or of an HCA is limited from
below and from above by dynamical considerations. Proper scaling of
wE by
K, where K is the total excitatory synaptic connectivity, allows
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