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Updated: Dec 26, 2025

Brain Pericyte Calcium and Hemodynamic Imaging in Transgenic Mice In Vivo

Brain Pericyte Calcium and Hemodynamic Imaging in Transgenic Mice In Vivo

Published on: November 20, 2021

Deconvolution of calcium imaging data using marked point processes.

Ryohei Shibue¹, Fumiyasu Komaki^2,3,4

¹NTT Communication Science Laboratories, Atsugi-shi, Japan.

Plos Computational Biology

|March 13, 2020

Summary

This summary is machine-generated.

We developed a new deconvolution method for calcium imaging using marked point processes. This approach enhances neural data analysis by estimating spike trains and incorporating stimulus information for better insights.

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Author Spotlight: An Innovative Approach to Neural Electrical Stimulation Using Calcium Imaging

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Published on: August 18, 2023

Area of Science:

Neuroscience
Computational Biology
Signal Processing

Background:

Calcium imaging is crucial for measuring neuronal spiking activity.
Current matrix deconvolution methods for calcium imaging preprocessing have limitations.
Existing methods struggle to estimate spike train generation mechanisms and integrate stimulus information.

Purpose of the Study:

To introduce a novel deconvolution method for calcium imaging.
To address limitations of existing preprocessing techniques.
To develop a method that estimates generative mechanisms and utilizes stimulus information.

Main Methods:

Proposed a new deconvolution method utilizing marked point processes.
Modeled observed calcium imaging data using a probabilistic framework with marked point processes as hidden variables.
Employed variational inference to compute the posterior distribution of these hidden variables.

Main Results:

The new method simultaneously estimates cell shape, spike occurrence time, and tuning curves.
Successfully applied the method to both simulated and experimental calcium imaging data.
Demonstrated improved performance in extracting neural information compared to existing methods.

Conclusions:

The marked point process deconvolution method offers a powerful new tool for calcium imaging analysis.
This approach provides a more comprehensive understanding of neural activity by estimating underlying generative processes.
The method's ability to integrate stimulus information opens new avenues for neuroscience research.