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Generalized partial directed coherence

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Author(s):
Baccala, Luiz A. ; Sameshima, K. ; Takahashi, D. Y. ; Sanei, S ; Chambers, JA ; McWhirter, J ; Hicks, Y ; Constantinides, AG
Total Authors: 8
Document type: Journal article
Source: PROCEEDINGS OF THE 2007 15TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING; v. N/A, p. 2-pg., 2007-01-01.
Abstract

This paper re-examines the definition of partial directed coherence (PDC) which was recently introduced as a linear frequency-domain quantifier of the multivariate relationship between simultaneously observed time. series for application in functional connectivity inference in neuroscience. The present reappraisal aims at improving PDC's performance under scenarios that involve severely unbalanced predictive modelling errors (innovanations noise). The present modification turns out to be more. robust in estimating imprecisions associated with finite time series samples. (AU)

FAPESP's process: 05/56464-9 - Neuroscience Imaging Center at University of São Paulo Medical School
Grantee:Giovanni Guido Cerri
Support Opportunities: Inter-institutional Cooperation in Support of Brain Research (CINAPCE) - Thematic Grants