A recent article [36] applied advanced volumetric and shape analyses and demonstrated that chronic alterations in anti-GAD AE consist in subtle shape abnormalities of selected areas in the hippocampus head, rather than a clear hippocampal atrophy, while other areas (including CA3 and hippocampal fissure) seem to be spared by the atrophy. This evidence concerns the gene GAD1 and hippocampal atrophy.