Unsupervised learning of stationary and switching dynamical system models from Poisson observations

CY Song, MM Shanechi - Journal of Neural Engineering, 2023 - iopscience.iop.org
Objective. Investigating neural population dynamics underlying behavior requires learning
accurate models of the recorded spiking activity, which can be modeled with a Poisson …

Modeling multiscale causal interactions between spiking and field potential signals during behavior

C Wang, B Pesaran, MM Shanechi - Journal of neural …, 2022 - iopscience.iop.org
Objective. Brain recordings exhibit dynamics at multiple spatiotemporal scales, which are
measured with spike trains and larger-scale field potential signals. To study neural …

Modeling and inference methods for switching regime-dependent dynamical systems with multiscale neural observations

CY Song, HL Hsieh, B Pesaran… - Journal of Neural …, 2022 - iopscience.iop.org
Objective. Realizing neurotechnologies that enable long-term neural recordings across
multiple spatial-temporal scales during naturalistic behaviors requires new modeling and …

A multiscale dynamical modeling and identification framework for spike-field activity

H Abbaspourazad, HL Hsieh… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Dynamical encoding models characterize neural activity with low-dimensional hidden states
that dynamically evolve in time and gienerate behavior. Current methods have identified …

[HTML][HTML] Multimodal subspace identification for modeling discrete-continuous spiking and field potential population activity

P Ahmadipour, OG Sani, B Pesaran… - Journal of Neural …, 2024 - iopscience.iop.org
Objective. Learning dynamical latent state models for multimodal spiking and field potential
activity can reveal their collective low-dimensional dynamics and enable better decoding of …

A point-process matched filter for event detection and decoding from population spike trains

N Sadras, B Pesaran… - Journal of neural …, 2019 - iopscience.iop.org
Objective. Information encoding in neurons can be described through their response fields.
The spatial response field of a neuron is the region of space in which a sensory stimulus or a …

Brain–computer interfaces for neuropsychiatric disorders

LL Oganesian, MM Shanechi - Nature Reviews Bioengineering, 2024 - nature.com
Neuropsychiatric disorders such as major depression are a leading cause of disability
worldwide with standard treatments, including psychotherapy or medication, failing many …

Dynamical flexible inference of nonlinear latent structures in neural population activity

H Abbaspourazad, E Erturk, B Pesaran, MM Shanechi - bioRxiv, 2023 - biorxiv.org
Inferring complex spatiotemporal dynamics in neural population activity is critical for
investigating neural mechanisms and developing neurotechnology. These activity patterns …

[HTML][HTML] Event detection and classification from multimodal time series with application to neural data

N Sadras, B Pesaran… - Journal of Neural …, 2024 - iopscience.iop.org
The detection of events in time-series data is a common signal-processing problem. When
the data can be modeled as a known template signal with an unknown delay in Gaussian …

Efficient Estimation of Directed Connectivity in Nonlinear and Nonstationary Spiking Neuron Networks

W Chen, Y Wang, Y Yang - IEEE Transactions on Biomedical …, 2023 - ieeexplore.ieee.org
Objective: Studying directed connectivity within spiking neuron networks can help
understand neural mechanisms. Existing methods assume linear time-invariant neural …