Role of Delays in Shaping Spatiotemporal Dynamics of Neuronal Activity in Large Networks

by: Alex Roxin, Nicolas Brunel, David Hansel

Physical Review Letters, Vol. 94, No. 23. (2005)

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Abstract

We study the effect of delays on the dynamics of large networks of neurons. We show that delays give rise to a wealth of bifurcations and to a rich phase diagram, which includes oscillatory bumps, traveling waves, lurching waves, standing waves arising via a period-doubling bifurcation, aperiodic regimes, and regimes of multistability. We study the existence and the stability of the various dynamical patterns analytically and numerically in a simplified rate model as a function of the interaction parameters. The results derived in that framework allow us to understand the origin of the diversity of dynamical states observed in large networks of spiking neurons.

@article{citeulike:326872, abstract = {We study the effect of delays on the dynamics of large networks of neurons. We show that delays give rise to a wealth of bifurcations and to a rich phase diagram, which includes oscillatory bumps, traveling waves, lurching waves, standing waves arising via a period-doubling bifurcation, aperiodic regimes, and regimes of multistability. We study the existence and the stability of the various dynamical patterns analytically and numerically in a simplified rate model as a function of the interaction parameters. The results derived in that framework allow us to understand the origin of the diversity of dynamical states observed in large networks of spiking neurons.}, author = {Roxin, Alex and Brunel, Nicolas and Hansel, David }, citeulike-article-id = {326872}, doi = {10.1103/PhysRevLett.94.238103}, journal = {Physical Review Letters}, keywords = {delay}, number = {23}, posted-at = {2005-09-20 13:55:18}, priority = {4}, publisher = {APS}, title = {Role of Delays in Shaping Spatiotemporal Dynamics of Neuronal Activity in Large Networks}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000094000023238103000001\&idtype=cvips\&gifs=yes}, volume = {94}, year = {2005} }

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TY - JOUR ID - citeulike:326872 L3 - citeulike-article-id:326872 TI - Role of Delays in Shaping Spatiotemporal Dynamics of Neuronal Activity in Large Networks JF - Physical Review Letters VL - 94 IS - 23 PB - APS N2 - We study the effect of delays on the dynamics of large networks of neurons. We show that delays give rise to a wealth of bifurcations and to a rich phase diagram, which includes oscillatory bumps, traveling waves, lurching waves, standing waves arising via a period-doubling bifurcation, aperiodic regimes, and regimes of multistability. We study the existence and the stability of the various dynamical patterns analytically and numerically in a simplified rate model as a function of the interaction parameters. The results derived in that framework allow us to understand the origin of the diversity of dynamical states observed in large networks of spiking neurons. KW - delay AU - Roxin, Alex AU - Brunel, Nicolas AU - Hansel, David PY - 2005/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000094000023238103000001&idtype=cvips&gifs=yes ER -

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