Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:B2L-C
Session:
Number:B2L-C-1
Highly Irregular Spike Trains Generated from Weakly Fluctuated Inputs
Ryosuke Hosaka,
pp.443-446
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
The irregular firing of a cortical neuron is believed to emerge from a highly fluctuating drive generated by a balance between excitatory and inhibitory synaptic inputs. A previous study reported a strange response of the Hodgkin-Huxley neuron to the fluctuated inputs where an irregularity of spike trains is inversely proportional to an input irregularity. In the current study, we investigated the origin of this strange response using the map-based models. The map-based model reproduced the strange response with bistability of resting state and repetitive firing state, This indicates that the irregular firing can be emerged even from a weakly fluctuating drive under the existence of the bistability.