Fig. 5

Quality control metrics related to the functional (BOLD) MRI scans. SNR: signal-to-noise ratio, an index of signal quality; FD: framewise displacement¹⁰⁴, an index of overall movement; GCOR: global correlation, an index of the presence of global signals¹⁰⁵; GSR: ghost-to-signal ratio, an index of ghosting along the phase-encoding axis.