Table 2 Significant differences in qEEG spectral power.

From: EEG may serve as a biomarker in Huntington’s disease using machine learning automatic classification

Channel

Band

Power - Healthy controls (N = 25)

Power - Combined (pre)HD (N = 26)

p-value

t-statistic

Cohen’s d

Fp1

delta

4.5

4.9

0.004

−3.0

0.85

Fp2

delta

4.5

4.9

0.005

−2.9

0.82

F3

theta

3.3

3.0

0.007

2.8

−0.78

F4

theta

3.3

3.1

0.016

2.5

−0.70

Fz

theta

3.4

3.1

0.003

3.1

−0.88

C3

delta

3.6

3.8

0.048

−2.0

0.57

C3

theta

3.1

2.9

0.011

2.7

−0.74

C3

alpha

3.2

2.9

0.025

2.3

−0.65

C4

theta

3.1

2.9

0.004

3.0

−0.85

C4

alpha

3.2

2.9

0.022

2.4

−0.66

Cz

theta

3.3

3.1

0.024

2.3

−0.65

T3

theta

3.3

3.1

0.025

2.3

−0.65

T3

alpha

3.4

3.1

0.049

2.0

−0.56

T4

delta

3.9

4.1

0.031

−2.2

0.62

T4

theta

3.3

3.1

0.024

2.3

−0.66

T4

alpha

3.4

3.1

0.047

2.0

−0.57

T5

theta

3.5

3.2

0.009

2.7

−0.77

T5

alpha

3.7

3.4

0.025

2.3

−0.65

T6

delta

3.9

4.1

0.042

−2.1

0.58

T6

theta

3.4

3.2

0.042

1.8

−0.51

Pz

theta

3.2

3.1

0.031

2.2

−0.62

Pz

alpha

3.5

3.1

0.042

2.1

−0.58

  1. Power values are log10-transformed. N = number of participants. Two-tailed t-test p-values are reported. Degrees of freedom = 49.