# Dynamic embedding time series models in functional brain imaging

> **NIH NIH R01** · UNIVERSITY OF WISCONSIN-MADISON · 2024 · $350,270

## Abstract

Project Summary
We will develop new large-scale dynamic embedding models of network data with a focus on dynamic connec-
tivity matrices from non-stationary multivariate time series obtained from human functional magnetic resonance
images (fMRI). We propose to model brain networks as 2D curved surfaces, where the surface geodesics give
connectivity information. Our approach will bypass the use of parcellations and more accurately evaluate the
evolutionary dynamics of functional brain networks at the voxel level.
 We propose to build dynamically changing functional brain networks from a dataset with 1206 subjects from
the Human Connectome Project (HCP) database containing T1-weighted magnetic resonance images (MRI),
diffusion MRI (dMRI) and task and resting-state functional MRI (fMRI). MRI and dMRI will be used in conjunction
with fMRI in building more reﬁned dynamic connectivity models. Using 243 pairs of twins in the HCP database, we
will determine network phenotypes speciﬁc to behavior, cognition and their genetic associations. This study will
provide the research community with the brain network heritability maps and as well as a versatile open-source
toolbox of algorithms for modeling and visualizing dynamically changing large-scale brain networks.

## Key facts

- **NIH application ID:** 10923960
- **Project number:** 5R01MH133614-02
- **Recipient organization:** UNIVERSITY OF WISCONSIN-MADISON
- **Principal Investigator:** MOO K CHUNG
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2024
- **Award amount:** $350,270
- **Award type:** 5
- **Project period:** 2023-09-07 → 2027-06-30

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10923960

## Citation

> US National Institutes of Health, RePORTER application 10923960, Dynamic embedding time series models in functional brain imaging (5R01MH133614-02). Retrieved via AI Analytics 2026-05-21 from https://api.ai-analytics.org/grant/nih/10923960. Licensed CC0.

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