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@ARTICLE{Skaar:1050703,
author = {Skaar, JE. W. and Haug, N. and Plesser, Hans Ekkehard},
title = {{A} simplified model of {NMDA}-receptor-mediated dynamics
in leaky integrate-and-fire neurons},
journal = {Journal of computational neuroscience},
volume = {53},
issn = {0929-5313},
address = {Dordrecht [u.a.]},
publisher = {Springer Science + Business Media B.V},
reportid = {FZJ-2026-00448},
pages = {475-487},
year = {2025},
abstract = {A model for NMDA-receptor-mediated synaptic currents in
leaky integrate-and-fire neurons, first proposed by Wang (J
Neurosci, 1999), has been widely studied in computational
neuroscience. The model features a fast rise in the NMDA
conductance upon spikes in a pre-synaptic neuron followed by
a slow decay. In a general implementation of this model
which allows for arbitrary network connectivity and delay
distributions, the summed NMDA current from all neurons in a
pre-synaptic population cannot be simulated in aggregated
form. Simulating each synapse separately is prohibitively
slow for all but small networks, which has largely limited
the use of the model to fully connected networks with
identical delays, for which an efficient simulation scheme
exists. We propose an approximation to the original model
that can be efficiently simulated for arbitrary network
connectivity and delay distributions. Our results
demonstrate that the approximation incurs minimal error and
preserves network dynamics. We further use the approximate
model to explore binary decision making in sparsely coupled
networks.},
cin = {IAS-6},
ddc = {610},
cid = {I:(DE-Juel1)IAS-6-20130828},
pnm = {5231 - Neuroscientific Foundations (POF4-523) / 5232 -
Computational Principles (POF4-523) / 5234 - Emerging NC
Architectures (POF4-523) / 5235 - Digitization of
Neuroscience and User-Community Building (POF4-523) / HBP
SGA3 - Human Brain Project Specific Grant Agreement 3
(945539)},
pid = {G:(DE-HGF)POF4-5231 / G:(DE-HGF)POF4-5232 /
G:(DE-HGF)POF4-5234 / G:(DE-HGF)POF4-5235 /
G:(EU-Grant)945539},
typ = {PUB:(DE-HGF)16},
doi = {10.1007/s10827-025-00911-8},
url = {https://juser.fz-juelich.de/record/1050703},
}