Results from the combined fMRI–1H-MRS analysis, showing the regions where right ACC resting-state glutamate (rsGlu) differentially moderates the BOLD response in the cognitive control task (P < .001, extent threshold k = 50 voxels). Schizophrenia patients (SZ) and healthy controls (HC) display a positive and negative correlation, respectively, between BOLD response and right rsGlu. IPL, inferior parietal lobe; L, left; R, right.