Figure 1: Pre- and post-activation 99mTc ECD brain SPECT–Talairach analysis study in an SpLD student; (a) trans-axial images of baseline scan; (b) trans-axial images of test scan; (c) delta (a normalized subtraction of counts of baseline and test) images using NeuroGam (Talairach) analysis; (d) baseline (early) and test (late) trans-axial brain images, (e) graph showing an apparent increase in perfusion in all segments of test image based on the counts obtained in regions