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. 2016 Sep;82:192–205. doi: 10.1016/j.cortex.2016.05.001

Fig. 3.

Fig. 3

The source localisation of neural responses in MEG with local field potentials recorded in ECoG. A) Group MEG source localisation of MMN using multiple sparse priors inversion algorithm. There are significant MMN sources in bilateral primary auditory cortex, STG and IFG, shown in red with p < .01 and FWE correction. B) Average local field potential (LFP) for standard and deviant trials at each location for the patient with left (L1) and right (R2) electrodes respectively. Grey shading indicates significant (p < .01) differences between the conditions using a two-sample t-test with 25 msec temporal cluster threshold, comparing all trials at each time point. C) Group MEG reconstructed equivalent-current dipoles (ECD) waveforms at each of the source electrode locations used for ECoG in panel B). These coordinates are listed in text and in Fig. 2. Grey shading indicates 150–250 msec characteristic MMN time-window. *p < .05 and **p < .01 indicate significant differences between average standard and deviant conditions using a paired t-test across MEG participants.