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Chaos. 2011 Jun;21(2):023116. doi: 10.1063/1.3584822.

Time-delay-induced phase-transition to synchrony in coupled bursting neurons.

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Department of Physics and Astronomy, Georgia State University, Atlanta, Georgia 30303, USA.


Signal transmission time delays in a network of nonlinear oscillators are known to be responsible for a variety of interesting dynamic behaviors including phase-flip transitions leading to synchrony or out of synchrony. Here, we uncover that phase-flip transitions are general phenomena and can occur in a network of coupled bursting neurons with a variety of coupling types. The transitions are marked by nonlinear changes in both temporal and phase-space characteristics of the coupled system. We demonstrate these phase-transitions with Hindmarsh-Rose and Leech-Heart interneuron models and discuss the implications of these results in understanding collective dynamics of bursting neurons in the brain.

[Indexed for MEDLINE]

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