Clinical sectionDemonstration of useful differences between magnetoencephalogram and electroencephalogramDémonstration de différences utiles entre magnétoencéphalogramme et electroencéphalogramme☆
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2021, Clinical NeurophysiologyCitation Excerpt :It has been thought from early on in magnetoencephalography (MEG) research that MEG signals are relatively unaffected by the conductivity, thickness, and shape of the structures overlying the human brain (Geselowitz, 1970; Plonsey, 1974; 1982;; Cohen and Cuffin, 1983).
Spatiotemporal dynamics of responses to biological motion in the human brain
2021, CortexCitation Excerpt :While we cannot attain reliable measures of deeper (subcortical) responses with MEG, it is also possible that cortical response patterns specific to biological kinematics are more focal, and thus unable to be adequately reflected in the sparse and superficial sensor-sampling of MEG. Secondly, it is possible that the sources of response patterns specific to biological kinematics are simply more radial (e.g., top of cortical gyri), rather than tangential (e.g., sulci), which would render them more difficult to be measured via MEG (Cohen & Cuffin, 1983). Thirdly, it is of course entirely possible that due to the inherent differences in signals being measured (with fMRI measuring blood-oxygen-level-dependent signals, and MEG more closely reflecting absolute neuronal activity), one or the other is a more sensitive method for elucidating condition-specific responses.
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This work was supported by National Science Foundation Grant No. PCM-819973.