Modeling and dissociation of intrinsic and input-driven neural population dynamics underlying behavior

P Vahidi, OG Sani… - Proceedings of the …, 2024 - National Acad Sciences
Neural dynamics can reflect intrinsic dynamics or dynamic inputs, such as sensory inputs or
inputs from other brain regions. To avoid misinterpreting temporally structured inputs as …

[HTML][HTML] Expressive architectures enhance interpretability of dynamics-based neural population models

AR Sedler, C Versteeg… - Neurons, behavior, data …, 2023 - ncbi.nlm.nih.gov
Artificial neural networks that can recover latent dynamics from recorded neural activity may
provide a powerful avenue for identifying and interpreting the dynamical motifs underlying …

Scalable Bayesian GPFA with automatic relevance determination and discrete noise models

K Jensen, TC Kao, J Stone… - Advances in Neural …, 2021 - proceedings.neurips.cc
Latent variable models are ubiquitous in the exploratory analysis of neural population
recordings, where they allow researchers to summarize the activity of large populations of …

AMAG: Additive, Multiplicative and Adaptive Graph Neural Network For Forecasting Neuron Activity

J Li, L Scholl, T Le, P Rajeswaran… - Advances in …, 2024 - proceedings.neurips.cc
Abstract Latent Variable Models (LVMs) propose to model the dynamics of neural
populations by capturing low-dimensional structures that represent features involved in …

Learning interpretable control inputs and dynamics underlying animal locomotion

TS Mullen, M Schimel, G Hennequin… - The Twelfth …, 2024 - openreview.net
A central objective in neuroscience is to understand how the brain orchestrates movement.
Recent advances in automated tracking technologies have made it possible to document …

Inferring context-dependent computations through linear approximations of prefrontal cortex dynamics

J Soldado-Magraner, V Mante, M Sahani - bioRxiv, 2023 - biorxiv.org
The complex activity of neural populations in the Prefrontal Cortex (PFC) is a hallmark of
high-order cognitive processes. How these rich cortical dynamics emerge and give rise to …

[HTML][HTML] Expressive dynamics models with nonlinear injective readouts enable reliable recovery of latent features from neural activity

C Versteeg, AR Sedler, JD McCart, C Pandarinath - ArXiv, 2023 - ncbi.nlm.nih.gov
The advent of large-scale neural recordings has enabled new approaches that aim to
discover the computational mechanisms of neural circuits by understanding the rules that …

Structure-preserving recurrent neural networks for a class of Birkhoffian systems

S Xiao, M Chen, R Zhang, Y Tang - Journal of Systems Science and …, 2024 - Springer
In this paper, the authors propose a neural network architecture designed specifically for a
class of Birkhoffian systems—The Newtonian system. The proposed model utilizes recurrent …

lfads-torch: A modular and extensible implementation of latent factor analysis via dynamical systems

AR Sedler, C Pandarinath - arXiv preprint arXiv:2309.01230, 2023 - arxiv.org
Latent factor analysis via dynamical systems (LFADS) is an RNN-based variational
sequential autoencoder that achieves state-of-the-art performance in denoising high …

When and why does motor preparation arise in recurrent neural network models of motor control?

M Schimel, TC Kao, G Hennequin - bioRxiv, 2023 - biorxiv.org
During delayed ballistic reaches, motor areas consistently display movement-specific activity
patterns prior to movement onset. It is unclear why these patterns arise: while they have …