Cerebellar AtaxiaAtaxiaSpinocerebellar AtaxiasSpinocerebellar DegenerationsFriedreich AtaxiaGait AtaxiaAtaxia TelangiectasiaCerebellumOlivopontocerebellar AtrophiesStiff-Person SyndromeGenes, RecessiveMyoclonic Cerebellar DyssynergiaCerebellar DiseasesPedigreeReflex, AbnormalApraxiasMachado-Joseph DiseaseAge of OnsetPurkinje CellsSyndromeBromisovalumGenes, DominantTrinucleotide RepeatsNystagmus, PathologicFoot DeformitiesMultiple System AtrophyMagnetic Resonance ImagingOcular Motility DisordersAtaxia Telangiectasia Mutated ProteinsGliadinTrinucleotide Repeat ExpansionGlutamate DecarboxylaseAtrophyParaneoplastic Cerebellar DegenerationChromosomes, Human, Pair 19DysarthriaAnticipation, GeneticOptic AtrophyMutationOphthalmoplegia