Introduction; 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
Summary
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 oc
Bibliography
Includes bibliographical references (pages 233-241) and index
