@inproceedings{8a24b50f6c16432386fe8ba2af0beb2a,
title = "Influence of co-registration errors on the performance of anatomical constraints in MEG source connectivity analysis",
abstract = "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.",
author = "Federico Chella and Laura Marzetti and Alessio Basti and Matti Stenroos and Lauri Parkkonen and Ilmoniemi, {Risto J.} and Vittorio Pizzella",
year = "2019",
month = oct,
day = "1",
doi = "10.1109/SMC.2019.8914495",
language = "English",
series = "Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics",
publisher = "IEEE",
pages = "2754--2761",
booktitle = "2019 IEEE International Conference on Systems, Man and Cybernetics, SMC 2019",
address = "United States",
note = "IEEE International Conference on Systems, Man, and Cybernetics, SMC ; Conference date: 06-10-2019 Through 09-10-2019",
}