Influence of co-registration errors on the performance of anatomical constraints in MEG source connectivity analysis

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

Tutkijat

Organisaatiot

  • Gabriele d’Annunzio University

Kuvaus

We investigate how co-registration errors affect the performance of anatomical constraints in magnetoencephalographic (MEG) source modeling for source-space connectivity analysis. We simulated MEG recordings from pairs of interacting cortical sources with variable locations and with a co-registration error of 0-15 mm. We computed a beamformer-based source estimate with either a free-orientation or constrained-orientation source model and tested four popular connectivity measures: Imaginary part of coherency, amplitude-envelope correlation, phase-slope index and frequency-domain Granger causality. We found that even small co-registration errors (≥2 mm) compromise the performance of source orientation constraints in connectivity estimation.

Yksityiskohdat

AlkuperäiskieliEnglanti
Otsikko2019 IEEE International Conference on Systems, Man and Cybernetics, SMC 2019
TilaJulkaistu - 1 lokakuuta 2019
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaIEEE International Conference on Systems, Man, and Cybernetics - Bari, Italia
Kesto: 6 lokakuuta 20199 lokakuuta 2019

Julkaisusarja

NimiConference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
Vuosikerta2019-October
ISSN (painettu)1062-922X

Conference

ConferenceIEEE International Conference on Systems, Man, and Cybernetics
LyhennettäSMC
MaaItalia
KaupunkiBari
Ajanjakso06/10/201909/10/2019

ID: 40263565