DeepAI AI Chat
Log In Sign Up

Functional random effects modeling of brain shape and connectivity

09/13/2020
by   Eardi Lila, et al.
0

We present a statistical framework that jointly models brain shape and functional connectivity, which are two complex aspects of the brain that have been classically studied independently. We adopt a Riemannian modeling approach to account for the non-Euclidean geometry of the space of shapes and the space of connectivity that constrains trajectories of co-variation to be valid statistical estimates. In order to disentangle genetic sources of variability from those driven by unique environmental factors, we embed a functional random effects model in the Riemannian framework. We apply the proposed model to the Human Connectome Project dataset to explore spontaneous co-variation between brain shape and connectivity in young healthy individuals.

READ FULL TEXT

page 2

page 15

page 17

page 18

07/08/2019

Modeling Symmetric Positive Definite Matrices with An Application to Functional Brain Connectivity

In neuroscience, functional brain connectivity describes the connectivit...
06/04/2022

Investigating Brain Connectivity with Graph Neural Networks and GNNExplainer

Functional connectivity plays an essential role in modern neuroscience. ...
11/04/2021

Functional connectivity ensemble method to enhance BCI performance (FUCONE)

Functional connectivity is a key approach to investigate oscillatory act...
07/28/2022

Information parity on cortical functional brain networks increases under psychedelic influences

The physical basis of consciousness is one of the most intriguing open q...
04/24/2014

The fshape framework for the variability analysis of functional shapes

This article introduces a full mathematical and numerical framework for ...
03/30/2015

Fast Optimal Transport Averaging of Neuroimaging Data

Knowing how the Human brain is anatomically and functionally organized a...
02/09/2021

Clinical BCI Challenge-WCCI2020: RIGOLETTO – RIemannian GeOmetry LEarning, applicaTion To cOnnectivity

This short technical report describes the approach submitted to the Clin...