Multitaper Spectral Granger Causality with Application to Ssvep

Rachele Anderson, Maria Sandsten

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The traditional parametric approach to Granger causality (GC), based on linear vector autoregressive modeling, suffers from difficulties related to the inaccurate modeling of the generative process. These limits can be solved by using nonparametric spectral estimates in the frequency-domain formulation of GC, also known as spectral GC. In a simulation study, we compare the mean square error of the estimated spectral GC using different multitaper spectral estimators, finding that the Peak Matched multitapers are preferable for estimating spectral GC characterized by peaks. As an illustrative example, we apply the non-parametric approach to the analysis of brain functional connectivity in steady-state visually evoked potentials.
Original languageEnglish
Title of host publicationICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages1284-1288
ISBN (Electronic)978-1-5090-6631-5
DOIs
Publication statusPublished - 2020 May
EventIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020 - Centre de Convencions Internacional de Barcelona (CCIB), Barcelona, Spain
Duration: 2020 May 42020 May 8
https://2020.ieeeicassp.org/

Conference

ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2020
Abbreviated titleICASSP 2020
Country/TerritorySpain
CityBarcelona
Period2020/05/042020/05/08
Internet address

Subject classification (UKÄ)

  • Signal Processing

Free keywords

  • Non-parametric spectral Granger causality
  • multitaper spectral estimation
  • functional connectivity
  • steady-state visually evoked potentials (SSVEP)
  • EEG

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