Figure 2.

¹²³I-N-isopropyl-p-iodoamphetamine (¹²³I-IMP) single-photon emission computed tomography (SPECT) with three-dimensional stereotactic surface projection (3D-SSP). The Z-score (threshold 1.64) at the patient’s first visit (A): the right supramarginal gyrus (3.931); supra- (1.96), middle (2.285), and inferior (1.918) temporal gyri; inferior occipital gyrus (1.753); cuneus (1.842); and left lingual gyrus (1.653). The Z-score (threshold 1.64) six months later at the clinical onset (B): the right supramarginal gyrus (4.658); supra- (1.737), middle (2.577), and inferior (1.935) temporal gyri; superior (1.853) and middle (2.371) frontal gyri; orbital gyrus (2.715); and superior (1.935) and inferior (2.806) parietal lobules. The region of interest (ROI) of the supramarginal gyrus and supra-, middle, and inferior temporal gyri is indicated with a white line.