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Brain Signal AnalysisAdvances in Neuroelectric and Neuromagnetic Methods$
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Todd C. Handy

Print publication date: 2009

Print ISBN-13: 9780262013086

Published to MIT Press Scholarship Online: August 2013

DOI: 10.7551/mitpress/9780262013086.001.0001

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PRINTED FROM MIT PRESS SCHOLARSHIP ONLINE (www.mitpress.universitypressscholarship.com). (c) Copyright The MIT Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in MITSO for personal use.date: 02 July 2022

A Practical Guide to Beamformer Source Reconstruction for EEG

A Practical Guide to Beamformer Source Reconstruction for EEG

(p.79) 4 A Practical Guide to Beamformer Source Reconstruction for EEG
Brain Signal Analysis

Jessica J. Green

John J. McDonald

The MIT Press

This chapter provides a practical guide to beamformer source reconstruction for electoencephalography signals and describes how the choice of head model can affect beamformer source estimations. The chapter shows that the beamformer analysis still provides only an estimate of neural activity based on recordings made outside the head, and suggests that the beamformer method does not require a priori determination of the number of possible sources. The beamformer is also able to localize both the evoked and induced activities, and focus source localization on a specific frequency band. Finally, the beamformer offers a spatially filtered estimate of brain activity for each location independently rather than trying to solve the inverse problem by fitting a model to the measured data.

Keywords:   beamformer, electoencephalography, neural activity, brain activity, inverse problem

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