^○Yuka Hama¹, Hidetoshi Date¹, Yuji Takahashi¹, Hidehiro Mizusawa¹, J-CAT (Japan Consortium of Ataxias)² (1.Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Japan, 2.J-CAT (Japan Consortium of Ataxias))

^○Ryoji Goto¹, Koichiro Oba², Kyoko Todoroki², Junichiro Yoshida², Kyota Bando², Daisuke Nishida², Katsuhiro Mizuno², Hidehiro Mizusawa¹, Yuji Takahashi¹ (1.Department of Neurology, National Center of Neurology and Psychiatry, Japan, 2.Department of Physical Rehabilitation, National Center of Neurology and Psychiatry)

^○Feng Han, Ya-ping Lu, Ying-mei Lu (College of Pharmacy, Nanjing Medical University, China)

^○Kyota Bando¹, Takeru Honda², Yuji Takahashi¹, Katsuhiro Mizuno¹, Hidehiro Mizusawa¹, Takashi Hanakawa³ (1.National center of neurology and psychiatry, Japan, 2.Tokyo metropolitan institute of medical science, 3.Department of Integrated Neuroanatomy and Neuroimaging Kyoto University Graduate School of Medicine)

^○Ryuji Sakakibara, Fuyuki Tateno, Yosuke Aiba, Tomoyuki Uchiyama, Tatsuya Yamamoto, Hiroyoshi Suzuki, Katsuyoshi Matsuoka (Neurology, Internal Medicine, Sakura Medical Center, Toho University, Japan)

^○Kishin Koh¹, Hiroyuki Ishiura², Takashi Kimura³, Kiyotaka Nakamagoe⁴, Keiko Nakamura⁵, Yuta Ichinose¹, Hiroo Yoshikawa³, Yoshihide Sunada⁶, Akira Tamaoka⁴, Masahito Yamada⁵, Shoji Tsuji⁷, Yoshihisa Takiyama¹, JASPAC⁸ (1.Department of Neurology, University of Yamanashi, Japan, 2.Department of Neurology, The University of Tokyo, 3.Department of Neurology, Hyogo College of Medicine, 4.Department of Neurology, Division of Clinical Medicine, Faculty of Medicine, University of Tsukuba, 5.Department of Neurology and Neurobiology of Aging, Kanazawa University Graduate School of Medical Sciences, 6.Department of Neurology, Kawasaki Medical School, 7.Department of Molecular neurology, The University of Tokyo, 8.Japan Spastic Paraplegia Research Consortium)

^○Ryunosuke Nagao, Kazutaka Hayashi, Kunihisa Kato, Fumihiko Banno, Koichi Kikuchi, Atsuhiro Higashi, Kenichiro Murate, Seiko Hirota, Tomomasa Ishikawa, Yoshiki Niimi, Yasuaki Mizutani, Sayuri Shima, Akihiro Ueda, Shinji Ito, Tatsuro Mutoh, Hirohisa Watanabe (Department of Neurology, Fujita Health University School of Medicine, Japan)

^○Shinji Oda, Yuji Saitoh, Yuji Takahashi, Hidehiro Mizusawa, Japan Consortium of Ataxias (Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Japan)