ATXN3 and autosomal dominant cerebellar ataxia: The difference between IMCs in the 30–40 Hz and 15–25 Hz bands (IMC30-40 − IMC15-25) differentiated the SCA subtypes from the neurotypical group better than IMCβγ did, with the best performance in differentiating SCA3 from neurotypical subjects having an area under the ROC curve of 0.82.