Closely Spaced MEG Source Localization and Functional Connectivity Analysis Using a New Prewhitening Invariance of Noise Space Algorithm

Figure 7

FC graphs based on source reconstruction results using sLORETA, LCMV beamformer, and PW-INN. Real MEG noise was added such that SNR = 18. Small blue dots indicate brain volume grid points, and large blue dots indicate true source locations. (a)–(c) FC graphs estimated from sLORETA (a), LCMV beamformer (b), and PW-INN (c), when = 0 between two sources. (d)–(f) FC graphs estimated from sLORETA (d), LCMV beamformer (e), and IINN (f), when = 0.95 between two sources.