NEFL and spinocerebellar ataxia 7: In SCA7, SNc volume was negatively correlated with the estimated time to onset (r = −0.67, pFDR = 0.02), pathological CAG repeat expansion (r = −0.76, pFDR = 0.01), SARA (r = −0.73, pFDR = 0.006), and plasma NfL (−0.66, pFDF = 0.04) and positively correlated with CCAS (0.70, pFDR = 0.02).