Table 1 Comparison between essential tremor patients (group I) and healthy control subjects (group II) regarding the non-tremorgenic manifestations

Age

62.59 ± 4.62

62.02 ± 6.70

0.392

0.696

MoCA

25.33 ± 1.76

26.75 ± 1.57

3.192

0.002^a

AADLs

25.50 ± 4.17

28.70 ± 3.35

9.382

0.003^a

MADRS

16.31 ± 8.43

10.36 ± 5.11

9.135

0.004^a

Threshold

7.92 ± 1.18

9.58 ± 1.67

4.539

0.001^a

Identification

10.69 ± 1.24

12.17 ± 1.17

4.616

0.001^a

Discrimination

10.75 ± 1.23

11.79 ± 1.44

3.001

0.004^a

TDI total score

29.50 ± 3.11

33.50 ± 3.58

4.595

0.001^a

MMN (amplitude)

0.93 ± 0.22

1.55 ± 0.38

7.041

< 0.0001^a

MMN (latency)

272.27 ± 42.03

181.54 ± 14.19

10.052

< 0.0001^a

SOM ratio

93.19 ± 15.24

97.87 ± 1.22

1.463

0.149

VIS ratio

79.17 ± 2.70

89.09 ± 2.45

14.266

< 0.0001^a

VEST ratio

48.19 ± 4.42

67.39 ± 2.98

18.312

< 0.0001^a

CST (mean FA)

0.59 ± 0.06

0.71 ± 0.07

7.170

< 0.0001^a

CST (density)

370.03 ± 31.23

370.03 ± 31.23

1.503

0.138

MCP (mean FA)

0.56 ± 0.05

0.71 ± 0.07

8.716

< 0.0001^a

MCP (density)

604.35 ± 38.88

591.22 ± 34.59

1.307

0.197

TCT (mean FA)

0.47 ± 0.06

0.69 ± 0.07

26.259

< 0.0001^a

TCC (density)

680.29 ± 72.93

676.57 ± 75.20

0.035

0.852