Fig. 8. Comparison of four sections each of two different scans of dolphin OLY. The left column (A-D) shows a scan without diazepam while the center column shows sections from a scan with diazepam (E-H). Overall, metabolism is lower in the left hemisphere. The color bar indicates the relative degree of glucose metabolism in sections A-H with red indicating maximum. The right hand column shows oblique axial scans (as indicated in the upper right, section I) of dolphin MAY's MRI, to which have been registered the difference volumes between the two scans. In sections J-L, the colored regions correspond to a reduction in metabolism in the diazepam scan; the color indicates the relative degree of metabolic reduction with red indicating maximum reductions in glucose consumption.