Temporal decorrelation of collective oscillations in neural networks with local inhibition and long-range excitation.
Journal Article (Journal Article)
We consider two neuronal networks coupled by long-range excitatory interactions. Oscillations in the gamma frequency band are generated within each network by local inhibition. When long-range excitation is weak, these oscillations phase lock with a phase shift dependent on the strength of local inhibition. Increasing the strength of long-range excitation induces a transition to chaos via period doubling or quasiperiodic scenarios. In the chaotic regime, oscillatory activity undergoes fast temporal decorrelation. The generality of these dynamical properties is assessed in firing-rate models as well as in large networks of conductance-based neurons.
Full Text
Duke Authors
Cited Authors
- Battaglia, D; Brunel, N; Hansel, D
Published Date
- December 7, 2007
Published In
Volume / Issue
- 99 / 23
Start / End Page
- 238106 -
PubMed ID
- 18233419
International Standard Serial Number (ISSN)
- 0031-9007
Digital Object Identifier (DOI)
- 10.1103/PhysRevLett.99.238106
Language
- eng
Conference Location
- United States