Phase-disorder-induced double resonance of neuronal activity.
It is well known that resonance can be induced by external noise or diversity. Here we show that resonance can be induced even by a phase disorder in coupled excitable neurons with subthreshold activity. In contrast to the case of identical phase, we find that phase disorder plays an active role in enhancing neuronal activity. We also uncover that the presence of phase disorder can induce a double resonance phenomenon: phase disorder and coupling strength both can enhance neuronal firing activity. A physical theory is formulated to help understand the mechanism behind this double resonance phenomenon.
Liang
Xiaoming
X
Department of Physics, Institute of Theoretical Physics, East China Normal University, Shanghai 200062, China.
Dhamala
Mukeshwar
M
Zhao
Liang
L
Liu
Zonghua
Z
D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D001683:Biological Clocks / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D008959:Models, Neurological; D015233:Models, Statistical; D009474:Neurons / Q000502:physiology*; D017711:Nonlinear Dynamics