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Energy and synchronization between two neurons with nonlinear coupling.

Yitong Guo1, Ying Xie2, Chunni Wang2

  • 1College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, 730050 China.

Cognitive Neurodynamics
|August 6, 2024
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Summary
This summary is machine-generated.

This study explores how nonlinear coupling in neural circuits regulates synchronization and energy diversity. Nonlinear coupling prevents complete synchronization, allowing for controlled phase locking and balanced energy states between neurons.

Keywords:
Energy balanceHamilton energyNeuronNonlinear couplingSynchronization

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Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Complex Systems

Background:

  • Neural synchronization is influenced by synaptic connection properties.
  • Coupling channel physics dictates synchronization stability and energy diversity in neural circuits.
  • Existing models often use linear coupling, limiting dynamic range and energy regulation.

Purpose of the Study:

  • To investigate the role of nonlinear coupling in regulating neural circuit synchronization and energy dynamics.
  • To explore how a voltage-controlled quadratic component can model hybrid synapse behavior.
  • To demonstrate the control of synchronization transitions and energy balance through nonlinear coupling.

Main Methods:

  • Utilized a voltage-controlled electric component with a quadratic current-voltage relation to couple two-variable neural circuits.
  • Applied Helmholtz theorem to derive an energy function consistent with Hamilton energy.
  • Encoded chaotic signals and adjusted amplitude to excite neurons and detect nonlinear resonance.
  • Varied external stimuli to trigger different firing modes and nonlinear coupling intensities.

Main Results:

  • Nonlinear coupling demonstrated functional regulation akin to a hybrid synapse.
  • Synchronization transitions between neurons were controllable, promoting energy balance.
  • Nonlinear coupling maintained energy diversity and prevented synchronous bursting via time-switched feedback.
  • Complete synchronization was suppressed, and phase locking was controlled, preserving energy diversity.

Conclusions:

  • Nonlinear coupling offers a mechanism for functional regulation in neural systems, analogous to hybrid synapses.
  • Controllable synchronization transitions and energy balance are achievable through nonlinear coupling.
  • This approach enhances energy diversity and prevents undesirable synchronous bursting in neural networks.