| Tests |
ET patients Mean ± SD |
Controls Mean ± SD |
Degrees of freedom (df) |
Z |
Bonferroni Adjusted P value |
Effect Size Cohen’s d |
| Motor Speed – Finger Tapping Test (ET Patients, N=30 Vs Control, N=30) |
| Right side |
38.35 ± 6.23 |
52.59 ± 7.11 |
29 |
-4.434 |
<0.004*** |
2.14 |
| Left Side
|
37.77 ± 6.55 |
49.54 ± 6.88 |
29 |
-4.167 |
<0.004*** |
1.76 |
| Test of attention |
| Digit Vigilance test (ET Patients, N=28 Vs Control, N=28) |
Time taken
(sec) |
595.04 ± 179.4 |
471.07 ± 72.91 |
27 |
-2.642 |
<0.032** |
0.98 |
| Errors |
7.25 ± 3.76 |
5.04 ± 1.13 |
27 |
-2.747 |
<0.024** |
0.91 |
| Color trials test ((ET Patients, N=28 Vs Control, N=28) |
| Trial 1st (sec) |
95.8 ± 38.22 |
88.93 ± 30.06 |
27 |
-1.002 |
1.264 |
0.21 |
| Trial 2nd (sec) |
225.7 ± 105 |
192.29 ± 80.49 |
27 |
-1.264 |
0.824 |
0.36 |
| Executive Functions |
| Fluency( ET Patients, N=30 Vs Control, N=30) |
| Category |
13.17 ± 3.31 |
15.17 ± 18.51 |
29 |
-1.215 |
<0.08* |
0.18 |
| Phonemic |
7.37 ± 5.28 |
9.26 ± 2.24 |
29 |
-2.407 |
<0.064* |
0.51 |
| Planning-Tower of London Test ( ET Patients, N=30 Vs Control, N=30) |
| Total Number of Moves |
9.87 ± 1.33 |
11.23 ± 1.61 |
29 |
-3.021 |
<0.012** |
0.93 |
| Set shifting and concept formation-WCST( ET Patients, N=30 Vs Control, N=30) |
| % Perseverative responses |
35.16 ± 14.93 |
20.37 ± 10.79 |
29 |
-3.644 |
<0.004*** |
1.15 |
| % Conceptual responses |
33.67 ± 16.4 |
48.94 ± 16.81 |
29 |
-3.045 |
<0.008*** |
0.91 |
| Number of categories completed |
3.20 ± 1.81 |
4.53 ± 1.33 |
29 |
-3.284 |
<0.004*** |
0.84 |
| esponse Inhibition( ET Patients, N=28 Vs Control, N =28 ) |
| Stroop |
149 ± 73.72 |
133 ± 41.51 |
27 |
-1.048 |
1.16 |
0.27 |
| Working Memory- N Back Test (ET Patients, N=30 Vs Control, N=30) |
| Verbal N Back- 1 Back hits |
8.53 ± 0.68 |
8.8 ± 0.5 |
29 |
-1.795 |
<0.292* |
0.45 |
| 1 Back errors |
0.9 ± 1.24 |
0.2 ± 0.5 |
29 |
-2.976 |
<0.012** |
0.81 |
| 2 Back hits |
6.3 ± 1.57 |
7.7 ± 0.93 |
29 |
-3.304 |
<0.004*** |
1.12 |
| 2 Back errors |
4.67 ± 2.3 |
1.8 ± 1.2 |
29 |
-4.146 |
<0.004*** |
1.64 |
Visual N Back Test
(1 Back hits) |
6.57 ± 1.507 |
7.83 ± 0.6 |
29 |
-3.378 |
<0.004*** |
1.19 |
| 1 Back errors |
6.6 ± 3.1 |
2.27 ± 1.14 |
29 |
-4.575 |
<0.004*** |
2.04 |
| 2 Back hits |
4.27 ± 1.94 |
6.33 ± 0.8 |
29 |
-3.962 |
<0.004*** |
1.51 |
| 2 Back errors |
7.8 ± 2.4 |
3.97 ± 1.4 |
29 |
-4.353 |
<0.004*** |
2.02 |
| Learning and memory – AVLT( ET Patients, N=30 Vs Control, N=30) |
| Total trials(1 to5) |
38.8 ± 8.79 |
52.87 ± 8 |
29 |
-4.521 |
<0.004*** |
1.67 |
| Immediate Recall |
8.87 ± 2.2 |
12.03 ± 2.15 |
29 |
-4.043 |
<0.004*** |
1.45 |
| Delayed Recall |
8.9 ± 2.5 |
11.73 ± 2.06 |
29 |
-4.243 |
<0.004*** |
1.24 |
| Long Term Percent Retention |
87.48 ± 23 |
88.44 ± 8.02 |
29 |
- .977 |
1.316 |
0.06 |
