Average of all trials in 26 subjects after visual stimulation at (a) channel level after ICA-based BCG artefact correction and (b) IC level.

<p>Figures on the left correspond to data recorded at 0T and figures on the righ to data recorded at 9.4T.</p

DMN identified from the group analysis of the 15 subjects.

<p>DMN identified from the group analysis of the 15 subjects.</p

Statistical correlation maps of the EEG frequencies with the DMN signal.

<p>Significant voxels thresholded at p<0.00833 for (a) delta-band extracted from the ACC (b) beta-1 frequency extracted from the PCC, (c) beta-2 frequency extracted from the PCC and (d) beta-2 frequency extracted from the precuneus.</p

Methodological approach: LORETA analysis was performed after correction and demodulation for a specific frequency.

<p>The extracted average power was included into the dual regression analysis in order to identify brain structures whose BOLD signal variation correlates with the power of EEG-frequencies. The image below shows voxels in which alpha power extracted from the ACC was positively correlated (p<0.00833) with the activity of the DMN.</p

Alpha-band source localisation from the averaged signal across the 15 subjects using LORETA.

<p>Alpha-band source localisation from the averaged signal across the 15 subjects using LORETA.</p

MNI coordinates of clusters with minimal correlation p values with the DMN signal. Structures defined according to the Harvard-Oxford Cortical Structural Atlas.

<p>MNI coordinates of clusters with minimal correlation p values with the DMN signal. Structures defined according to the Harvard-Oxford Cortical Structural Atlas.</p

Descriptive statistics of N1 and P2 ERPs.

<p>Descriptive statistics of N1 and P2 ERPs.</p

Repeated measures ANOVA analysis (n = 16) of 1 factor at 4 levels.

<p>Color bar represents Z-scores.</p

Mixed effects group analysis (n = 16) of the fMRI activation related to the 70, 80, 90 and 100 dB stimuli.

<p>Color bar represents Z-scores.</p

Mixed-effects statistical map of EEG-informed group analysis (n = 16) showing additional clusters in high vs. low intensity tones.

<p>Statistically significant voxels were thresholded at p <0.05. Color bar represents Z-scores.</p