Skip to main content
bioRxiv
  • Home
  • About
  • Submit
  • ALERTS / RSS
Advanced Search
New Results

Optimized implementations of voxel-wise degree centrality and local functional connectivity density mapping in AFNI

R. Cameron Craddock, Daniel J. Clark
doi: https://doi.org/10.1101/067702
R. Cameron Craddock
1Computational Neuroimaging Lab, Center for Biomedical Imaging and Neuromodulation, Nathan Kline Institute for Psychiatric Research, Orangeburg, 140 Old Orangeburg Rd, 10962, New York, USA
2Center for the Developing Brain, Child Mind Institute, New York, 445 Park Ave, 10022, New York, USA
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: ccraddock@nki.rfmh.org
Daniel J. Clark
2Center for the Developing Brain, Child Mind Institute, New York, 445 Park Ave, 10022, New York, USA
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Abstract
  • Full Text
  • Info/History
  • Metrics
  • Preview PDF
Loading

Abstract

Degree centrality (DC) and local functional connectivity density (lFCD) are statistics calculated from brain connectivity graphs that measure how important a brain region is to the graph. DC (a.k.a. global functional connectivity density) is calculated as the number of connections a region has with the rest of the brain (binary DC), or the sum of weights for those connections (weighted DC). lFCD was developed to be a surrogate measure of DC that is faster to calculate by restricting its computation to regions that are spatially adjacent. Although both of these measures are popular for investigating inter-individual variation in brain connectivity, efficient neuroimaging tools for computing them are scarce. The goal of this Brainhack project was to contribute optimized implementations of these algorithms to the widely used, open source, AFNI software package.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
Back to top
PreviousNext
Posted December 07, 2016.
Download PDF
Email

Thank you for your interest in spreading the word about bioRxiv.

NOTE: Your email address is requested solely to identify you as the sender of this article.

Enter multiple addresses on separate lines or separate them with commas.
Optimized implementations of voxel-wise degree centrality and local functional connectivity density mapping in AFNI
(Your Name) has forwarded a page to you from bioRxiv
(Your Name) thought you would like to see this page from the bioRxiv website.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Share
Optimized implementations of voxel-wise degree centrality and local functional connectivity density mapping in AFNI
R. Cameron Craddock, Daniel J. Clark
bioRxiv 067702; doi: https://doi.org/10.1101/067702
Reddit logo Twitter logo Facebook logo LinkedIn logo Mendeley logo
Citation Tools
Optimized implementations of voxel-wise degree centrality and local functional connectivity density mapping in AFNI
R. Cameron Craddock, Daniel J. Clark
bioRxiv 067702; doi: https://doi.org/10.1101/067702

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero
  • Tweet Widget
  • Facebook Like
  • Google Plus One

Subject Area

  • Bioinformatics
Subject Areas
All Articles
  • Animal Behavior and Cognition (4370)
  • Biochemistry (9550)
  • Bioengineering (7071)
  • Bioinformatics (24778)
  • Biophysics (12568)
  • Cancer Biology (9925)
  • Cell Biology (14302)
  • Clinical Trials (138)
  • Developmental Biology (7932)
  • Ecology (12080)
  • Epidemiology (2067)
  • Evolutionary Biology (15959)
  • Genetics (10905)
  • Genomics (14708)
  • Immunology (9848)
  • Microbiology (23587)
  • Molecular Biology (9456)
  • Neuroscience (50710)
  • Paleontology (369)
  • Pathology (1535)
  • Pharmacology and Toxicology (2674)
  • Physiology (4001)
  • Plant Biology (8644)
  • Scientific Communication and Education (1505)
  • Synthetic Biology (2388)
  • Systems Biology (6415)
  • Zoology (1345)