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. Author manuscript; available in PMC: 2017 Jan 1.
Published in final edited form as: Neuroimage. 2015 Sep 25;124(Pt A):714–723. doi: 10.1016/j.neuroimage.2015.09.030

Figure 1.

Figure 1

Methodological approach for combo mapping. Raw BOLD signal obtained from the left motor cortex during tongue movement is extracted (left panel) and decomposed into task-related variance (middle panel, top) and residual spontaneous variance (middle panel, bottom). The task-related variance is used to generate a conventional task activation map (middle panel, top) while the residual spontaneous variance is used to generate a functional connectivity map (middle panel, bottom). The task-based map and spontaneous activity map are combined in a weighted fashion to generate a combo map (right panel).