Triple pathological staining of autopsy cases prepared separately from this study showed that PM‐PBB3–positive tau lesions were present in large amounts in the GP sections of patients with PSP but rarely in the GP sections of patients with AD and HCs, and in large amounts in the amygdala sections of patients with AD but rarely in the amygdala sections of patients with PSP and HCs (Fig. 3). Here, MAPT is linked to Alzheimer disease.