English

Analytical Investigation of Long-time Diffusion Dynamics in a Synaptic Channel with Glial Cells

Neurons and Cognition 2021-09-14 v1

Abstract

In this letter, we first derive the analytical channel impulse response for a cylindrical synaptic channel surrounded by glial cells and validate it with particle-based simulations. Afterwards, we provide an accurate analytical approximation for the long-time decay rate of the channel impulse response by employing Taylor expansion to the characteristic equations that determine the decay rates of the system. We validate our approximation by comparing it with the numerical decay rate obtained from the characteristic equation. Overall, we provide a fully analytical description for the long-time behavior of synaptic diffusion, e.g., the clean-up processes inside the channel after communication has long concluded.

Keywords

Cite

@article{arxiv.2109.06029,
  title  = {Analytical Investigation of Long-time Diffusion Dynamics in a Synaptic Channel with Glial Cells},
  author = {Enes Oncu and Halil U. Ozdemir and Halil I. Orhan and Bayram Cevdet Akdeniz and Asaf Toprakci and Anil Aslihak and H. Birkan Yilmaz and Ali E. Pusane and Tuna Tugcu and Fatih Dinc},
  journal= {arXiv preprint arXiv:2109.06029},
  year   = {2021}
}