Spinocerebellar Ataxia 4, also known as spinocerebellar ataxia type 4, is related to spinocerebellar ataxia, autosomal recessive 4 and spinocerebellar ataxia 13. An important gene associated with Spinocerebellar Ataxia 4 is PLEKHG4 (Pleckstrin Homology And RhoGEF Domain Containing G4). The drugs TA 0910 and Nootropic Agents have been mentioned in the context of this disorder. Affiliated tissues include cerebellum and cortex, and related phenotypes are impaired vibratory sensation and impaired proprioception