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@ARTICLE{Potjans:19275,
author = {Potjans, W and Morrison, A and Diesmann, M},
title = {{E}nabling functional neural circuit simulations with
distributed computing of neuromodulated plasticity},
journal = {Frontiers in computational neuroscience},
volume = {4},
issn = {1662-5188},
address = {Lausanne},
publisher = {Frontiers Research Foundation},
reportid = {PreJuSER-19275},
pages = {1-17},
year = {2010},
note = {We are most grateful to Hans Ekkehard Plesser for language
legality consultation. We also thank the editor and the
reviewers for the constructive interaction which helped us
to considerably improve the integration of our work into the
special issue. Partially funded by DIP F1.2, BMBF Grant
01GQ0420 to the Bernstein Center for Computational
Neuroscience Freiburg, EU Grant 15879 (FACETS), the Junior
Professor Program of Baden-Wurttemberg, "The Next-Generation
Integrated Simulation of Living Matter" project, part of the
Development and Use of the Next-Generation Supercomputer
Project of the Ministry of Education, Culture, Sports,
Science and Technology (MEXT) of Japan and the Helmholtz
Alliance on Systems Biology. Access to supercomputing
facility through JUGENE-Grant JINB33.},
abstract = {A major puzzle in the field of computational neuroscience
is how to relate system-level learning in higher organisms
to synaptic plasticity. Recently, plasticity rules depending
not only on pre- and post-synaptic activity but also on a
third, non-local neuromodulatory signal have emerged as key
candidates to bridge the gap between the macroscopic and the
microscopic level of learning. Crucial insights into this
topic are expected to be gained from simulations of neural
systems, as these allow the simultaneous study of the
multiple spatial and temporal scales that are involved in
the problem. In particular, synaptic plasticity can be
studied during the whole learning process, i.e., on a time
scale of minutes to hours and across multiple brain areas.
Implementing neuromodulated plasticity in large-scale
network simulations where the neuromodulatory signal is
dynamically generated by the network itself is challenging,
because the network structure is commonly defined purely by
the connectivity graph without explicit reference to the
embedding of the nodes in physical space. Furthermore, the
simulation of networks with realistic connectivity entails
the use of distributed computing. A neuromodulated synapse
must therefore be informed in an efficient way about the
neuromodulatory signal, which is typically generated by a
population of neurons located on different machines than
either the pre- or post-synaptic neuron. Here, we develop a
general framework to solve the problem of implementing
neuromodulated plasticity in a time-driven distributed
simulation, without reference to a particular implementation
language, neuromodulator, or neuromodulated plasticity
mechanism. We implement our framework in the simulator NEST
and demonstrate excellent scaling up to 1024 processors for
simulations of a recurrent network incorporating
neuromodulated spike-timing dependent plasticity.},
keywords = {J (WoSType)},
cin = {INM-6},
ddc = {610},
cid = {I:(DE-Juel1)INM-6-20090406},
pnm = {Neurowissenschaften / Brain-Scale Simulations
$(jinb33_20090701)$},
pid = {G:(DE-Juel1)FUEK255 / $G:(DE-Juel1)jinb33_20090701$},
shelfmark = {Mathematical $\&$ Computational Biology / Neurosciences},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:21151370},
pmc = {pmc:PMC2996144},
UT = {WOS:000288499700001},
doi = {10.3389/fncom.2010.00141},
url = {https://juser.fz-juelich.de/record/19275},
}