Table 1

MJD patient characteristics

Patients					Symptoms at the time of MRI
No	Sex	(CAG)_n	Onset age	Duration before MRI (years)	Lim EM	Slow EM	Atx	M atroph	Fasc	Sp	Bab	IM	Rig	Sen
*The autopsied patient; †the sister of the autopsied patient.
Atx, ataxia; Bab, Babinski’s sign; (CAG)_n, the number of CAG repeats; Fasc, fasciculation; IM, abnormal involuntary movement; Lim EM, limitation in eye movement; M atroph, muscular atrophy; n, absent; p, present; Rig, rigidity; Sens, sensory disturbance; Slow EM, slow eye movement; Sp, spasticity.
1	F	13/73	30	19	p	n	p	n	n	n	n	n	n	n
2	F	14/56	48	16	p	n	p	n	p	n	n	p	n	p
3	F	25/67	42	16	p	n	p	n	p	n	n	n	n	n
4*	M	18/71	40	16	p	n	p	p	n	p	p	n	n	n
5	M	27/70	50	16	n	p	p	n	p	n	p	n	p	n
6	M	23/72	32	14	p	n	p	n	p	p	n	p	n	n
7	F	18/70	36	12	n	n	p	n	n	p	n	n	n	p
8	M	19/70	31	11	n	n	p	n	p	p	n	n	p	n
9	F	25/63	48	10	p	n	p	n	p	p	p	n	n	p
10	M	19/65	52	8	n	n	p	p	n	p	p	n	n	n
11†	F	19/65	40	8	n	n	p	n	p	p	n	n	n	p
12	F	27/72	38	7	p	p	p	n	p	n	p	n	n	p
13	M	27/59	69	6	n	n	p	p	p	n	p	n	n	n
14	M	27/63	54	5	n	n	p	n	p	p	n	n	n	n
15	M	27/65	37	3	p	n	p	n	p	p	n	n	p	n
16	M	27/66	58	1	n	n	p	n	n	n	n	n	n	n