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@INPROCEEDINGS{Diesmann:1044916,
author = {Diesmann, Markus},
title = {{B}rain models as digital twins advance theory and
neuromorphic {C}omputing},
reportid = {FZJ-2025-03438},
year = {2024},
abstract = {Computational neuroscience is entering a new era. This
originates from the convergence of two developments: First,
biological knowledge has expanded, enabling the construction
of anatomically detailed models of one or multiple brain
areas. Second, simulation has firmly established itself in
neuroscience as a third pillar alongside experiment and
theory. A conceptual separation has been achieved between
concrete network models and generic simulation engines.
Neuroscientists can now work with digital twins of certain
brain structures to test their ideas on brain functions and
probe the validity of approximations required for analytical
approaches.However, the use of this capability also requires
a change in mindset. Computational neuroscience seems stuck
at a certain level of model complexity for the last decade
not only because anatomical data were missing or because of
a lack of simulation technology. The fascination of the
field with minimal models leads to explanations for
individual mechanisms, but the reduction to the bare
equations required provides researchers with few contact
points to build on these works and construct larger systems
with a wider explanatory scope. In addition, creating
large-scale models goes beyond the period of an individual
PhD project. The change of perspective required is to view
digital twins as research platforms and scientific software
as infrastructure.As a concrete example, the presentation
discusses how the universality of mammalian brain structures
motivates the construction of large-scale models and
demonstrates how digital workflows help to reproduce results
and increase the confidence in such models. A digital twin
promotes neuroscientific investigations but can also serve
as a benchmark for technology. The talk shows how a model of
the cortical microcircuit has become a de facto standard for
neuromorphic computing [5] and has sparked a constructive
race in the community for ever larger computation speed and
lower energy consumption.},
month = {Oct},
date = {2024-10-15},
organization = {FIAS Neuroscience Seminar, Frankfurt
(Germany), 15 Oct 2024 - 16 Oct 2024},
subtyp = {Invited},
cin = {IAS-6 / INM-10},
cid = {I:(DE-Juel1)IAS-6-20130828 / I:(DE-Juel1)INM-10-20170113},
pnm = {5234 - Emerging NC Architectures (POF4-523) / HiRSE -
Helmholtz Platform for Research Software Engineering
(HiRSE-20250220) / Brain-Scale Simulations
$(jinb33_20220812)$ / EBRAINS 2.0 - EBRAINS 2.0: A Research
Infrastructure to Advance Neuroscience and Brain Health
(101147319)},
pid = {G:(DE-HGF)POF4-5234 / G:(DE-Juel-1)HiRSE-20250220 /
$G:(DE-Juel1)jinb33_20220812$ / G:(EU-Grant)101147319},
typ = {PUB:(DE-HGF)31},
url = {https://juser.fz-juelich.de/record/1044916},
}