Prisms to Shift Pain Away: Pathophysiological and Therapeutic Exploration of CRPS with Prism Adaptation
Table 6
Results of the circle drawing task obtained in the patients group before and after adaptation and in the control group.
Controls
Preadaptation patients
Postadaptation patients
Left hand
Right hand
Healthy hand
Affected hand
Healthy hand
Affected hand
Mean
SEM
Mean
SEM
Mean
SEM
Mean
SEM
Mean
SEM
Mean
SEM
No vision
Perimeter
462.6
15.0
451.4
12.2
490
43.7
489.6
37.5
543.9
19.4
545.4
10.9
Angle
11.2
4.2
4.0
1.0
3.2
3.9
4.6
7.5
5.7
1.1
5.4
H. drift
4.1
9.6
2.4
3.8
16.3
4.9
4.4
18.0
3.4
H. extent
131.7
5.1
127.4
4.4
141.8
11.2
136.5
7.5
152.7
4.9
149.4
5.9
Surface
15978
906
15582
747
19271
3516
18785
2896
22676
1624
22591
905
Hand vision
Perimeter
454.4
12.7
453.6
9.1
489
46.8
474.5
40.7
538.6
24.8
524.3
18.8
Angle
3.2
6.2
4.0
5.6
6.6
1.5
5.3
5.3
2.4
H. drift
1.7
4.6
11.3
3.1
1.5
4.1
9.3
2.4
2.3
3.4
11.6
4.4
H. extent
125.5
4.0
125.6
5.0
136.5
10.2
132.2
8.7
151.3
6.6
147.6
4.6
Surface
15603
764
15621
562
18748
3480
17736
2958
22145
1943
21234
1438
Full vision
Perimeter
398.2
19.2
376.2
20.7
471.6
25.0
434.6
22.5
516.8
23.8
485.4
26.9
Angle
6.4
1.8
3.1
3.9
3.0
3.9
3.3
4.8
H. drift
2.7
3.2
2.3
3.5
1.3
4.3
3.3
2.5
3.0
H. extent
119.1
6.0
108.1
6.2
138.2
6.8
128.8
6.2
145.9
4.7
132.4
7.4
Surface
12100
1058
11002
1036
17019
1729
14613
1423
20229
1841
17909
2032
The main pre-post effect did not lead to significant results in any of the three conditions. Additionally, no pre-post contribution to interaction effects was obtained. Several hand and direction main effects were observed as in the previous analysis comparing patients to controls.
