Search Results for author: David G. Clark

Found 6 papers, 2 papers with code

Structure of activity in multiregion recurrent neural networks

no code implementations19 Feb 2024 David G. Clark, Manuel Beiran

To characterize this interaction, we develop a dynamical mean-field theory to analyze such networks in the limit where each region contains infinitely many neurons, with cross-region currents as key order parameters.

Theory of coupled neuronal-synaptic dynamics

no code implementations17 Feb 2023 David G. Clark, L. F. Abbott

In chaotic states with strong Hebbian plasticity, a stable fixed point of neuronal dynamics is destabilized by synaptic dynamics, allowing any neuronal state to be stored as a stable fixed point by halting the plasticity.

Dimension of activity in random neural networks

no code implementations25 Jul 2022 David G. Clark, L. F. Abbott, Ashok Litwin-Kumar

Neural networks are high-dimensional nonlinear dynamical systems that process information through the coordinated activity of many connected units.

Credit Assignment Through Broadcasting a Global Error Vector

1 code implementation NeurIPS 2021 David G. Clark, L. F. Abbott, SueYeon Chung

We prove that these weight updates are matched in sign to the gradient, enabling accurate credit assignment.

Spiking Linear Dynamical Systems on Neuromorphic Hardware for Low-Power Brain-Machine Interfaces

no code implementations22 May 2018 David G. Clark, Jesse A. Livezey, Edward F. Chang, Kristofer E. Bouchard

Neuromorphic architectures achieve low-power operation by using many simple spiking neurons in lieu of traditional hardware.

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