Supplementary Table 1. Clinical features and tactile thresholds of patients. Most patients exhibited
some degree of motor deficits with subjectively mild sensory deficits characteristic of lesions involving
the putamen and the basal ganglia. In all patients, there was no aphasia or impaired cognition, no central
post-stroke pain (CPSP), and no signs of hemineglect. MRC, Medical Research Council; LUE, left upper
extremity; RUE, right upper extremity; LLE, left lower extremity; RLE, right lower extremity.
Supplementary Table 1. Clinical features and tactile thresholds of patients
Patient
Sex/Age at
onset/age
at testing
Time
after
stroke
(yrs)
Tactile thresholds ± SEM
(Newtons)
Neurologic exam
Left
arm
Right
arm
Left
leg
Right
leg
1
M/65/71
6
1.65
1.65
1.65
1.65
2
M/51/51
2
weeks
4.56
4.56
3.51
3.51
3
F/57/62
5
3.22
3.22
4.56
4.31
4
M/47/62
15
3.22
3.22
4.08
4.31
5
M/45/46
1
1.65
1.65
1.65
1.65
Mild decreased sensation to touch in the
right leg but not in the right arm.
Proprioception was decreased in the right
arm. Pinprick and vibration sensations
were intact. Motor examination revealed
some distal weakness involving the RUE.
For RUE strength, finger flexion 2+/5 on
the MRC scale, finger and wrist extension
0/5. For right leg, strengths of hip flexors,
knee extensors were 4/5, knee flexors 2/5.
Gait was spastic with decreased knee
control and circumduction on the right.
Sensory exam was normal throughout light
touch, pinprick, vibration, and
proprioception. Motor examination
revealed normal strength for both RUE
and RLE in all areas tested 5/5. RUE mild
clumsiness and bradykinesia were noted.
Sensory exam was normal throughout light
touch, pinprick, vibration, and
proprioception. Motor examination
showed normal strength for both RUE and
RLE in all areas tested 5/5. Finger-to-nose
touch is slow but intact. On Romberg
testing, the patient sways and seems
unsteady but does not fall. No pronator
drift, but hands were somewhat tremulous.
Sensory exam was normal throughout light
touch, pinprick, vibration, and
proprioception. Motor examination
showed normal strength for both RUE and
RLE in all areas tested 5/5.
Sensory exam was normal throughout light
touch, pinprick, vibration and
proprioception. For RUE strength,
proximal strengths including the deltoid
6
M/62/63
1
3.22
3.61
4.31
4.31
7
M/41/53
12
1.65
1.65
3.61
3.61
8
M/62/64
2
2.44
2.44
2.44
2.44
9
F/47/49
2
3.22
4.08
3.61
4.08
Patients
6M 3F/
53/59
(mean)
6M 8F / 59
(mean)
4.89
±1.77
2.76
±0.33
2.90
±0.37
3.27
±0.37
3.32
+0.37
N/A
3.15
±0.17
3.12
±0.16
3.61
±0.16
3.62
±0.15
Normals
were 2/5 and 1/5 distally. For RLE,
proximal strength was 3/5 and 1+/5
distally.
Sensory exam was normal throughout light
touch, pinprick, vibration and
proprioception. RUE strength was 2/5
proximally and 0/5 distally. RLE strength
was 4-/5 proximally and 5-/5 distally.
Sensory examination normal throughout
pinprick, vibration, and proprioception.
Very mild decreased touch on the right
side, especially RUE. Residual right
hemiparesis, biceps strength 4/5, wrist
flexion and finger flexion 3+/5. For the
right leg, strengths of hip flexors, knee
flexors and extensors were 4+/5.
Sensory examination was normal
throughout light touch, proprioception and
vibration, although there was a mild
decreased sensation to pinprick. Residual
right hemiparesis. RUE is flaccid without
withdrawal. RUE strength was 3-/5
proximally including the deltoids 3+/5 and
0/5 distally. RLE 4/5 to the quadriceps,
ankle plantar flexion 4-/5, ankle
dorsiflexion 1/5. Patient has weak grip and
intrinsic hand muscles are significantly
weak. Patient walks with circumduction of
his foot.
Sensory examination was normal
throughout pinprick, proprioception and
vibration, although there was a very mild
decreased touch on the right side.
Increased tone and weakness in right side.
Right shoulder and elbow strengths were
2+/5. Patient can move right thumb, but no
significant movements in rest of fingers
and grip. RLE strength was 4/5 at the hip
and knee. Right foot drop was 1/5
strength, ankle dorsiflexion was 3/5.