Figure 4: Time course (in fMRI scans) of BOLD signal for three a priori defined ROIs (blue line shows right side of ROI, and red line shows right side) graphing transitions between rest, access concentration, and jhanas. Figure 4(a) shows BOLD signal averaged for all voxels in BA 5 and 7 (orientation area), Figure 4(b) shows average BOLD in ACC, and Figure 4(c) shows average BOLD in medial OFC. Note the prompt drop in signal during transition events, including the decline in BA 5,7 activity during jhanas and the increase in OFC signal during jhanas (J1 was not recorded due to head movement artifacts).