Comparison of different multivariate methods for the estimation of cortical connectivity

Simulations and applications to EEG data

L. Astolfi, F. Cincotti, D. Mattia, M. Lai, L. Baccala, F. De Vico Fallani, S. Salinari, M. Ursino, M. Zavaglia, F. Babiloni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

The problem of the definition and evaluation of brain connectivity has become a central one in neuroscience during the latest years, as a way to understand the organization and interaction of cortical areas during the execution of cognitive or motor tasks. Among various methods established during the years, the Directed Transfer Function (DTF), the Partial Directed Coherence (PDC) and the direct DTF (dDTF) are frequency-domain approaches to this problem, all based on a multivariate autoregressive modeling of time series and on the concept of Granger causality. In this paper we propose the use of these methods on cortical signals estimated from high resolution EEG recordings, a non invasive method which exhibits a higher spatial resolution than conventional cerebral electromagnetic measures. The principle contribution of this work are the results of a simulation study, testing the capability of the three estimators to reconstruct a connectivity model imposed, with a particular eye on the capability to distinguish between direct and indirect causality. An application to high resolution EEG recordings during a foot movement is also presented.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Pages4484-4487
Number of pages4
Volume7 VOLS
Publication statusPublished - 2005
Event2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005 - Shanghai, China
Duration: Sep 1 2005Sep 4 2005

Other

Other2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005
CountryChina
CityShanghai
Period9/1/059/4/05

Fingerprint

Electroencephalography
Transfer functions
Time series
Brain
Testing

Keywords

  • Directed transfer function
  • Foot movement
  • High resolution EEG
  • Partial directed coherence

ASJC Scopus subject areas

  • Bioengineering

Cite this

Astolfi, L., Cincotti, F., Mattia, D., Lai, M., Baccala, L., De Vico Fallani, F., ... Babiloni, F. (2005). Comparison of different multivariate methods for the estimation of cortical connectivity: Simulations and applications to EEG data. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 7 VOLS, pp. 4484-4487). [1615463]

Comparison of different multivariate methods for the estimation of cortical connectivity : Simulations and applications to EEG data. / Astolfi, L.; Cincotti, F.; Mattia, D.; Lai, M.; Baccala, L.; De Vico Fallani, F.; Salinari, S.; Ursino, M.; Zavaglia, M.; Babiloni, F.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. p. 4484-4487 1615463.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Astolfi, L, Cincotti, F, Mattia, D, Lai, M, Baccala, L, De Vico Fallani, F, Salinari, S, Ursino, M, Zavaglia, M & Babiloni, F 2005, Comparison of different multivariate methods for the estimation of cortical connectivity: Simulations and applications to EEG data. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 7 VOLS, 1615463, pp. 4484-4487, 2005 27th Annual International Conference of the Engineering in Medicine and Biology Society, IEEE-EMBS 2005, Shanghai, China, 9/1/05.
Astolfi L, Cincotti F, Mattia D, Lai M, Baccala L, De Vico Fallani F et al. Comparison of different multivariate methods for the estimation of cortical connectivity: Simulations and applications to EEG data. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS. 2005. p. 4484-4487. 1615463
Astolfi, L. ; Cincotti, F. ; Mattia, D. ; Lai, M. ; Baccala, L. ; De Vico Fallani, F. ; Salinari, S. ; Ursino, M. ; Zavaglia, M. ; Babiloni, F. / Comparison of different multivariate methods for the estimation of cortical connectivity : Simulations and applications to EEG data. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 7 VOLS 2005. pp. 4484-4487
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