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Chaotic solutions in the quadratic integrate-and-fire neuron with adaptation.


ABSTRACT: The quadratic integrate-and-fire (QIF) model with adaptation is commonly used as an elementary neuronal model that reproduces the main characteristics of real neurons. In this paper, we introduce a QIF neuron with a nonlinear adaptive current. This model reproduces the neuron-computational features of real neurons and is analytically tractable. It is shown that under a constant current input chaotic firing is possible. In contrast to previous study the neuron is not sinusoidally forced. We show that the spike-triggered adaptation is a key parameter to understand how chaos is generated.

SUBMITTER: Zheng G 

PROVIDER: S-EPMC2727159 | biostudies-other | 2009 Sep

REPOSITORIES: biostudies-other

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