Synthetic-aperture magnetometry (SAM) is a method for analysis of data obtained from
magnetoencephalography (MEG) and
electroencephalography
Electroencephalography (EEG) is a method to record an electrogram of the spontaneous electrical activity of the brain. The biosignals detected by EEG have been shown to represent the postsynaptic potentials of pyramidal neurons in the neocortex ...
(EEG). SAM is a nonlinear
beamforming approach which can be thought of as a
spatial filter.
[
Robinson S.E., Vrba, J. Functional neuroimaging by synthetic aperture magnetometry (SAM). In: Yoshimoto T, Kotani M, Kuriki S, Karibe H,Nakasato N, editors. Recent Advances in Biomagnetism. Sendai: Tohoku University Press; 1998. p. 302–305
]
See also
*
Aperture synthesis
References
Magnetoencephalography
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