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Group comparison of fMRI activation (z-map): CTRL > HFA (red/yellow) and HFA > CTRL (blue/light blue) for each condition (S, left; V+S, middle; C, right). The maps are displayed on an inflated cortical surface template, where sulci and gyri are represented in dark and light gray, respectively. The top and bottom rows represent left (LH) and right (RH) hemisphere differences between the two groups, respectively.
