CaltechAUTHORS
  A Caltech Library Service

Synchronization, oscillations, and 1/f noise in networks of spiking neurons

Stemmler, Martin and Usher, Marius and Koch, Christof and Olami, Zeev (1994) Synchronization, oscillations, and 1/f noise in networks of spiking neurons. In: Advances in Neural Information Processing Systems 6. Morgan Kaufmann , San Francisco, CA, pp. 629-636. ISBN 1-55860-322-0 http://resolver.caltech.edu/CaltechAUTHORS:20150305-162425562

[img] PDF - Published Version
See Usage Policy.

1562Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20150305-162425562

Abstract

We investigate a model for neural activity that generates long range temporal correlations, 1/ f noise, and oscillations in global activity. The model consists of a two-dimensional sheet of leaky integrate-and- fire neurons with feedback connectivity consisting of local excitation and surround inhibition. Each neuron is independently driven by homogeneous external noise. Spontaneous symmetry breaking occurs, resulting in the formation of "hotspots" of activity in the network. These localized patterns of excitation appear as clusters that coalesce, disintegrate, or fluctuate in size while simultaneously moving in a random walk constrained by the interaction with other clusters. The emergent cross-correlation functions have a dual structure, with a sharp peak around zero on top of a much broader hill. The power spectrum associated with single units shows a 1/ f decay for small frequencies and is flat at higher frequencies, while the power spectrum of the spiking activity averaged over many cells-equivalent to the local field potential-shows no 1/ f decay but a prominent peak around 40 Hz.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://papers.nips.cc/paper/736-synchronization-oscillations-and-1f-noise-in-networks-of-spiking-neuronsOrganizationArticle
Additional Information:© 1994 Morgan Kaufmann. We are indebted to William Softky, Wyeth Bair, Terry Sejnowski, Michael Cross, John Hopfield, and Ernst Niebur, for insightful discussions. Our research was supported by a Myron A. Bantrell Research Fellowship, the Howard Hughes Medical Institute, the National Science Foundation, the Office of Naval Research and the Air Force Office of Scientific Research.
Group:Koch Laboratory, KLAB
Funders:
Funding AgencyGrant Number
Myron A. Bantrell Research FellowshipUNSPECIFIED
Howard Hughes Medical Institute (HHMI)UNSPECIFIED
NSFUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Record Number:CaltechAUTHORS:20150305-162425562
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20150305-162425562
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55567
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:06 Mar 2015 05:21
Last Modified:06 Mar 2015 05:21

Repository Staff Only: item control page