arXiv AI

SpikeSSL: A Universal Spike Inference Framework with Dynamics-Informed State-Space Layers

SpikeSSL is a universal spike inference framework that uses bidirectional IIR state‑space layers inspired by calcium dynamics as its temporal backbone. It incorporates a multi‑modal conditioning encoder to adapt to different calcium indicators, sampling rates, and trace statistics, and provides per‑frame uncertainty estimates. On a benchmark of 33 public datasets, SpikeSSL achieves state‑of‑the‑art performance both in‑domain and in zero‑shot leave‑one‑indicator‑out settings, and a biophysical simulation pipeline further improves cross‑indicator generalization.

arXiv AI
Jul 28

CAPT: A Multi-task Continuous Autoregressive Transformer enabling Cross-dataset and Cross-species Transfer for Calcium Population Dynamics

arXiv:2607. 23258v1 Announce Type: new Abstract: Large-scale calcium imaging has created an opportunity to build foundation-style models for neural population dynamics, but a central question remains unresolved: \textbf{whether a model pretrained on one collection of recordings can generalize to new datasets, experimental paradigms, and even species.

By Xinhong Xu, Yimeng Zhang, Yuanlong Zhang
arXiv Machine Learning
1d ago

Capturing Membrane Dynamics and Spike Timing of Human Neurons at Scale using Neural Operators

The paper introduces a neural-operator framework that learns a shared operator across multiple neurons of the same cell type, conditioned on biologically interpretable electrophysiological features. This approach scales biophysically realistic neuron models to large populations while preserving rich cellular dynamics and within-cell-type variability. Evaluation shows accurate reproduction of subthreshold membrane dynamics, spike waveforms, firing-rate responses, and spike timing across major cortical inhibitory neuron types, with predicted electrophysiological feature distributions closely matching detailed simulations and human recordings.

By Luca Ghafourpour, Cindy Zhao, Valentin Duruisseaux, Bahareh Tolooshams, Philip H. Wong, Costas A. Anastassiou, Anima Anandkumar
arXiv AI
Jun 19

SL-S4Wave: Self-Supervised Learning of Physiological Waveforms with Structured State Space Models

arXiv:2606. 19888v1 Announce Type: cross Abstract: Modeling long-sequence medical time series data, such as electrocardiograms (ECG), poses significant challenges due to high sampling rates, multichannel signal complexity, inherent noise, and limited labeled data.

By Feng Wu, Harsh Deep, Eric Lehman, Sanyam Kapoor, Guoshuai Zhao, Rahul Krishnan, Gari Clifford, Li-wei H Lehman
arXiv Computer Vision
Aug 25

QuantFormer: Learning to Quantize for Neural Activity Forecasting in Mouse Visual Cortex

arXiv:2412.07264v2 Announce Type: replace-cross Abstract: Understanding complex animal behaviors hinges on deciphering the neural activity patterns within brain circuits, making the ability to foreca...

By Salvatore Calcagno, Isaak Kavasidis, Simone Palazzo, Marco Brondi, Luca Sit\`a, Giacomo Turri, Daniela Giordano, Vladimir R. Kostic, Tommaso Fellin, Massimiliano Pontil, Concetto Spampinato
arXiv AI
Oct 2

SpikeMoE: Brain-Inspired Competitive Routing for Flexible Spiking Mixture-of-Experts

SpikeMoE introduces a spike-based k‑WTA router that uses lateral inhibition and refractory periods to select the top‑K experts based on discrete spike counts, inspired by hippocampal CA1 competition. The framework combines spiking neural network dynamics with mixture‑of‑experts conditional computation and adds a two‑stage missing‑modality module for robust multimodal processing. Experiments on vision, language, and multimodal tasks show that SpikeMoE matches or surpasses ANN baselines while offering energy‑efficient performance.

By Xiaoli Liu, Yujie Liang, Jialin Li, Malu Zhang
arXiv Machine Learning
Sep 22

A discrete generative model of neuronal spiking activity on microelectrode arrays

The paper presents a discrete generative model for neuronal spiking activity recorded on microelectrode arrays. It uses a shared vocabulary of spatiotemporal motifs learned by a residual vector‑quantized autoencoder and predicts motif occurrence with a factorized masked transformer. Evaluated on 31 assays from human brain organoids and ex vivo hippocampal tissue, the model achieves superior reconstruction and generation performance compared to baselines and shows that motifs are largely reused across assays.

By Md Sayed Tanveer, Mohammed A. Mostajo-Radji, Ge Wang
arXiv Computer Vision
Aug 25

Retrieval-Augmented Visual Prompting: Guiding Foundation Models in Two-Photon Imaging

arXiv:2608.21970v1 Announce Type: new Abstract: Two-photon calcium imaging presents a challenging setting for foundation models: image appearance varies substantially across recordings and experiment...

By Salvatore Calcagno, Marco Finocchiaro, Giovanni Bellitto, Daniela Giordano, Concetto Spampinato, Federica Proietto Salanitri