Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Moritz Helias"'
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033264 (2024)
It is frequently hypothesized that cortical networks operate close to a critical point. Advantages of criticality include rich dynamics well suited for computation and critical slowing down, which may offer a mechanism for dynamic memory. However, me
Externí odkaz:
https://doaj.org/article/989ab1e3ff584d4598af8a0035195b3e
Autor:
Claudia Merger, Alexandre René, Kirsten Fischer, Peter Bouss, Sandra Nestler, David Dahmen, Carsten Honerkamp, Moritz Helias
Publikováno v:
Physical Review X, Vol 13, Iss 4, p 041033 (2023)
One challenge of physics is to explain how collective properties arise from microscopic interactions. Indeed, interactions form the building blocks of almost all physical theories and are described by polynomial terms in the action. The traditional a
Externí odkaz:
https://doaj.org/article/a523f110422843ccba803710d4613280
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033177 (2023)
Neuronal systems need to process temporal signals. Here, we show how higher-order temporal (co)fluctuations can be employed to represent and process information. Concretely, we demonstrate that a simple biologically inspired feedforward neuronal mode
Externí odkaz:
https://doaj.org/article/ab662ab4e8944795b5f003cb99af225a
Publikováno v:
Frontiers in Neuroinformatics, Vol 16 (2022)
Mean-field theory of neuronal networks has led to numerous advances in our analytical and intuitive understanding of their dynamics during the past decades. In order to make mean-field based analysis tools more accessible, we implemented an extensibl
Externí odkaz:
https://doaj.org/article/d21cbf5684f3480ea92835d0c1e80b5b
Autor:
David Dahmen, Moritz Layer, Lukas Deutz, Paulina Anna Dąbrowska, Nicole Voges, Michael von Papen, Thomas Brochier, Alexa Riehle, Markus Diesmann, Sonja Grün, Moritz Helias
Publikováno v:
eLife, Vol 11 (2022)
Modern electrophysiological recordings simultaneously capture single-unit spiking activities of hundreds of neurons spread across large cortical distances. Yet, this parallel activity is often confined to relatively low-dimensional manifolds. This im
Externí odkaz:
https://doaj.org/article/43004154ed83436da2c38a914386305b
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043143 (2022)
Understanding the functional principles of information processing in deep neural networks continues to be a challenge, in particular for networks with trained and thus nonrandom weights. To address this issue, we study the mapping between probability
Externí odkaz:
https://doaj.org/article/5989045787e041c3bc9fc32dbe700635
Publikováno v:
Frontiers in Neuroinformatics, Vol 15 (2021)
Due to the point-like nature of neuronal spiking, efficient neural network simulators often employ event-based simulation schemes for synapses. Yet many types of synaptic plasticity rely on the membrane potential of the postsynaptic cell as a third f
Externí odkaz:
https://doaj.org/article/749e386d369145efa10692e0720f073f
Publikováno v:
PLoS Computational Biology, Vol 16, Iss 10, p e1008127 (2020)
Learning in neuronal networks has developed in many directions, in particular to reproduce cognitive tasks like image recognition and speech processing. Implementations have been inspired by stereotypical neuronal responses like tuning curves in the
Externí odkaz:
https://doaj.org/article/766a3c099e0f41169fa10704cf896abe
Publikováno v:
Frontiers in Neuroinformatics, Vol 14 (2020)
Investigating the dynamics and function of large-scale spiking neuronal networks with realistic numbers of synapses is made possible today by state-of-the-art simulation code that scales to the largest contemporary supercomputers. However, simulation
Externí odkaz:
https://doaj.org/article/8fff43ed24fb48cbb4c1a7763b8c5d25
Autor:
Marcel Heers, Moritz Helias, Tanguy Hedrich, Matthias Dümpelmann, Andreas Schulze-Bonhage, Tonio Ball
Publikováno v:
NeuroImage: Clinical, Vol 17, Iss , Pp 865-872 (2018)
The foremost aim of presurgical epilepsy evaluation is the delineation of the seizure onset zone (SOZ). There is increasing evidence that fast epileptic activity (FEA, 14–250Hz) occurring interictally, i.e. between seizures, is predominantly locali
Externí odkaz:
https://doaj.org/article/4a054cf905ec47b895c6b851cf246964