In contrast, when correcting for age, education, and sex effects, FRDA patients performed notably better than SCA14, SCA3, PICA stroke, and SCA6 patients (abnormal tests: FRDA: 45%, SCA14: 58%, SCA3: 64%, PICA stroke: 67%, SCA6: 72%). The gene discussed is CACNA1A; the disease is stroke disorder.