Asset Details
Do you wish to reserve the book?
A DCM for resting state fMRI
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A DCM for resting state fMRI
Do you wish to request the book?
A DCM for resting state fMRI
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A DCM for resting state fMRI
2014
Overview
This technical note introduces a dynamic causal model (DCM) for resting state fMRI time series based upon observed functional connectivity—as measured by the cross spectra among different brain regions. This DCM is based upon a deterministic model that generates predicted crossed spectra from a biophysically plausible model of coupled neuronal fluctuations in a distributed neuronal network or graph. Effectively, the resulting scheme finds the best effective connectivity among hidden neuronal states that explains the observed functional connectivity among haemodynamic responses. This is because the cross spectra contain all the information about (second order) statistical dependencies among regional dynamics. In this note, we focus on describing the model, its relationship to existing measures of directed and undirected functional connectivity and establishing its face validity using simulations. In subsequent papers, we will evaluate its construct validity in relation to stochastic DCM and its predictive validity in Parkinson's and Huntington's disease.
•This paper describes an efficient estimation of resting state connectivity.•The scheme is based on fitting observed complex fMRI cross spectra.•This spectral DCM grandfathers functional connectivity and Granger causality.
Publisher
Elsevier Inc,Elsevier,Elsevier Limited,Academic Press
Subject
/ Bayesian
/ Biological and medical sciences
/ Brain
/ Data Interpretation, Statistical
/ fMRI
/ Fundamental and applied biological sciences. Psychology
/ Graph
/ Humans
/ Image Interpretation, Computer-Assisted - methods
/ Magnetic Resonance Imaging - methods
/ Motion Perception - physiology
