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. 2012 Feb 1;59(3-2):2700–2708. doi: 10.1016/j.neuroimage.2011.10.066

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© 2012 Elsevier Inc.

Open Access under CC BY 3.0 license

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Supplementary Fig. 2 — Stability of coupling between VOI_proxy and ROI_stim. (a) The time course of ROI_stim during the rest run for one participant is shown together with the average time course of VOI_proxy. The voxels of this VOI_proxy and their weights were chosen such as to maximise the correspondence with the time course of ROI_stim, as explained in the main text. (b) The time course of ROI_stim during another rest run in the same participant, collected on a different day. The same voxels and weights were used to construct the average time course of VOI_proxy, and it is evident that there is still a close correspondence between the two time courses, confirming the stability of the coupling between ROI_stim and VOI_proxy over time. In (a), the activity in VOI_proxy explained 93.7% of the variance in ROI_stim, in (b) this was 46.4%.