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Conventional BOLD signal changes (-ΔR2 without MT) vs. ΔCBVa calculated from MT-varied BOLD within somatosensory ROIs (n = 13). Measured ΔCBVa is well correlated with BOLD; line shows fit to -ΔR2 = 0.68 · ΔCBVa + 0.12 (R2 = 0.49). Individual animal’s data for TE = 30 ms (squares) or TE = 40 ms (circles).
