The patient was a 64-year-old male. An SPECT scan was performed as described and further processed with SPM [1, 2]. The areas of interest displayed in yellow represent groups of voxels within which regional blood flow was below normal; is ≤.001. Three transaxial sections were selected from a group of 24. Image (a) shows reduced flow in a small volume of the left hippocampus (→). (b) ↑ shows reduced RCBF in the left caudate and adjacent lateral frontal cortex (↑). The lower arrow indicates reduced flow in the left posterior temporal and occipital regions. (c) There is reduced RCBF in the posterior cingulate cortex (↑). Left frontal and bilateral parietal regions of low flow are also noted.