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Published on: May 9, 2021
Neural synchronization at tonic-to-bursting transitions
Svetlana Postnova1, Karlheinz Voigt, Hans A Braun
1Institute of Physiology, Marburg, Germany. postnova@staff.uni-marburg.de
Journal of Biological Physics
|August 12, 2009
Summary
Investigating coupled model neurons reveals diverse synchronous behaviors, including chaotic synchronization. Neuron tuning significantly impacts these states, particularly near physiological tonic-to-bursting transitions.
Area of Science:
- Computational Neuroscience
- Systems Neuroscience
- Mathematical Biology
Background:
- Electrically coupled neurons exhibit complex synchronous behaviors.
- Individual neuron dynamics influence network synchronization patterns.
Purpose of the Study:
- To investigate the synchronous behavior of two electrically coupled model neurons.
- To analyze how varying coupling strength affects synchronization across different neuron activity patterns.
Main Methods:
- Simulated two electrically coupled model neurons.
- Tuned individual neuron dynamics from tonic firing to chaotic activity and burst discharges.
- Varied coupling strength to observe emergent synchronous states.
Main Results:
- Observed asynchronous and various synchronous states: out-of-phase, in-phase, and chaotic synchronization.
- Highest variety of synchronous states occurred at the tonic firing to chaos transition.
- In-phase synchronization required highest coupling strength and was facilitated towards bursting.
Conclusions:
- Neuron internal dynamics significantly impact network synchronous states.
- Physiologically relevant tonic-to-bursting transitions are critical for diverse synchronization patterns.
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