Adaptive Spatial Filters for Electromagnetic Brain Imaging

Buch | Hardcover
XI, 245 Seiten
2008 | 2008
Springer Berlin (Verlag)
978-3-540-79369-4 (ISBN)

Lese- und Medienproben

Adaptive Spatial Filters for Electromagnetic Brain Imaging - Kensuke Sekihara, Srikatan S. Nagarajan
171,19 inkl. MwSt
This book describes the technical advances of adaptive spatial filters for electromagnetic brain imaging by integrating and synthesizing available information. It also provides a comprehensive introduction into the basics of beamforming.

Neural activity in the human brain generates coherent synaptic and intracellular currents in cortical columns that create electromagnetic signals which can be measured outside the head using magnetoencephalography (MEG) and electroencephalography (EEG). Electromagnetic brain imaging refers to techniques that reconstruct neural activity from MEG and EEG signals. Electromagnetic brain imaging is unique among functional imaging techniques for its ability to provide spatio-temporal brain activation profiles that reflect not only where the activity occurs in the brain but also when this activity occurs in relation to external and internal cognitive events, as well as to activity in other brain regions. Adaptive spatial filters are powerful algorithms for electromagnetic brain imaging that enable high-fidelity reconstruction of neuronal activity. This book describes the technical advances of adaptive spatial filters for electromagnetic brain imaging by integrating and synthesizing available information and describes various factors that affect its performance. The intended audience include graduate students and researchers interested in the methodological aspects of electromagnetic brain imaging.

Sensor array outputs and spatial filters.- Tomographic reconstruction and nonadaptive spatial filters.- Adaptive spatial filters.- Location bias, spatial resolution, and beam response.- Output SNR and array mismatch.- Effects of low-rank interference.- Effects of high-rank interference.- Effects of source correlation.- Effects of using the sample covariance matrix.- Statistical evaluation of the spatial filter output.- Methods related to adaptive spatial filters.- Appendices.

Erscheint lt. Verlag 6.6.2008
Reihe/Serie Series in Biomedical Engineering
Zusatzinfo XI, 245 p.
Verlagsort Berlin
Sprache englisch
Maße 155 x 235 mm
Gewicht 544 g
Themenwelt Medizin / Pharmazie Physiotherapie / Ergotherapie Orthopädie
Technik
Schlagworte Adaptive beamformers • Beamformer Outputs • Bildgebende Verfahren (Medizin) • brain imaging • Electroencephalography EEG • electromagnetic brain imaging • Elektroenzephalografie • Elektromagnetismus • Hardcover, Softcover / Technik/Sonstiges • HC/Technik/Sonstiges • IFMBE • Imaging Methods • Imaging techniques • Magnetoencephalography MEG • reconstruction • Sensor Arrays • Signal Processing
ISBN-10 3-540-79369-0 / 3540793690
ISBN-13 978-3-540-79369-4 / 9783540793694
Zustand Neuware
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