MAPT and supranuclear palsy, progressive, 1: 2 as a strong candidate for causingAGD.74 Studies havedemonstrated the role of CNV in the etiology of several neuropsychiatricdisorders.75 Unlike other4R tauopathies such as PSP and CBD, there are controversies over the relationship ofthe tau H1 haplotype with positive and negative results.18,50