An efficient implementation of the synchronization likelihood algorithm for functional connectivity

Rosales García, Francisco Javier and García Dopico, Antonio and Bajo Breton, Ricardo and Nevado, Angel (2014). An efficient implementation of the synchronization likelihood algorithm for functional connectivity. "Neuroinformatics", v. 2 (n. 13); pp. 1-14. ISSN 1539-2791. https://doi.org/10.1007/s12021-014-9251-4.

Description

Title: An efficient implementation of the synchronization likelihood algorithm for functional connectivity
Author/s:
  • Rosales García, Francisco Javier
  • García Dopico, Antonio
  • Bajo Breton, Ricardo
  • Nevado, Angel
Item Type: Article
Título de Revista/Publicación: Neuroinformatics
Date: December 2014
ISSN: 1539-2791
Volume: 2
Subjects:
Freetext Keywords: Functional connectivity, Synchronization likelihood, Implementation, Parallelization
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Measures of functional connectivity are commonly employed in neuroimaging research. Among the most popular measures is the Synchronization Likelihood which provides a non-linear estimate of the statistical dependencies between the activity time courses of different brain areas. One aspect which has limited a wider use of this algorithm is the fact that it is very computationally and memory demanding. In the present work we propose new implementations and parallelizations of the Synchronization Likelihood algorithm with significantly better performance both in time and in memory use. As a result both the amount of required computational time is reduced by 3 orders of magnitude and the amount of memory needed for calculations is reduced by 2 orders of magnitude. This allows performing analyses that were not feasible before from a computational standpoint.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTEC2012-38453-C04UnspecifiedUnspecifiedUnspecified
Government of SpainPSI2010-22118UnspecifiedUnspecifiedUnspecified

More information

Item ID: 35703
DC Identifier: http://oa.upm.es/35703/
OAI Identifier: oai:oa.upm.es:35703
DOI: 10.1007/s12021-014-9251-4
Official URL: https://link.springer.com/article/10.1007%2Fs12021-014-9251-4
Deposited by: Memoria Investigacion
Deposited on: 07 May 2017 08:15
Last Modified: 23 May 2019 09:24
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