Figure 2. Scatterplot of All Voxels that Were Significantly Activated in the BOLD and CBV Scans in Figure 1.
Voxels that showed positive BOLD responses (red), as well as voxels that exhibited negative BOLD activation (blue), showed a decrease in signal intensity after MION injection, indicating that CBV was increased in both stimulated and unstimulated regions, although CBV increases were larger in the stimulated areas.