Table 2 Neural activity peaks recorded by magnetometers, musical expertise and contrasts in MEG 8-mm source space

From: Spatiotemporal brain hierarchies of auditory memory recognition and predictive coding

Tone #

Tone 2

Tone 3

Tone 4

Tone 5

Peak

Max

Min

Max

Min

Max

Min

Max

Min

Magnetometers in the left hemisphere

  Time (s)

0.708 (M)

0.612 (NT1)

1.092 (M)

0.992 (NT2)

1.452 (M)

1.340 (NT3)

1.804 (M)

1.736 (NT4)

  Musical expertise (FDR-corrected)

r = 0.093

p = 0.473

r = −0.218

p = 0.084

r = 0.239

p = 0.066

r = −0.186

p = 0.132

r = 0.286

p = 0.040

r = −0.261

p = 0.050

r = 0.344

p = 0.014

r = −0.034

p = 0.768

Contrasts in MEG source space

  Conditions

M versus NT1

M versus NT1

M versus NT1

M versus NT2

M versus NT1

M versus NT3

M versus NT1

M versus NT4

  Max t-val

5.79

n.s

5.45

−6.09

5.81

−6.56

5.1

−6.03

  FDR-adjusted p-value

0.003

n.s

0.009

0.008

0.01

0.01

0.01

0.02

  MNI coordinates

−6 −22 64

n.s

−6 −30 40

2 34 0

−6 −38 32

2 18 −16

26 −30 −8

−6 26 −16

  AAL region

Supp Motor Ar

n.s

Cingulum Mid

Cingulum Ant

Cingulum Mid

Subgenual

Hippocampus

Front Med Orb

Magnetometers in the right hemisphere

  Time (s)

0.620 (NT1)

0.832 (M)

0.988 (NT2)

1.088 (M)

1.352 (NT3)

1.456 (M)

1.732 (NT4)

1.920 (M)

  Musical expertise (FDR-corrected)

r = 0.242

p = 0.061

r = 0.051

p = 0.819

r = 0.428

p < 0.001

r = −0.034

p = 0.819

r = 0.459

p < 0.001

r = −0.050

p = 0.819

r = 0.257

p = 0.050

r = −0.026

p = 0.819

Contrasts in MEG source space

  Conditions

M versus NT1

M versus NT1

M versus NT2

M versus NT1

M versus NT3

M versus NT1

M versus NT4

M versus NT1

  Max t-val

n.s

4.41

−6.14

5.50

−7.13

5.61

−6.17

5.24

  FDR-adjusted p-value

n.s

0.001

0.008

0.01

0.02

0.01

0.02

0.01

  MNI coordinates

n.s

58 −14 −16

2 34 −8

−6 −30 40

2 18 −16

−6 −38 32

−6 26 −16

10 −46 48

  AAL region

n.s

Temporal Mid

Cingulum Ant

Cingulum Mid

Subgenual

Cingulum Mid

Front Med Orb

Precuneus

  1. The table shows the time index of the maximum and minimum peaks recorded by the magnetometers (see Fig. 3) for each tone (excluding the first one). Additionally, the table indicates the condition for which the strongest peaks were observed (in parenthesis). The table also illustrates the correlations between the absolute value of the neural peaks and the participants’ musical training (r = Pearson’s correlation coefficient, p-values are adjusted by the false discovery rate [FDR] correction for multiple comparisons). Finally, the table provides details of the MEG source contrasts (two-sided t-tests) in 8-mm space. This includes the conditions which were contrasted, t-value, FDR-adjusted p-value, Montreal Neurological Institute (MNI) coordinates, and automated anatomical labelling (AAL) region of the brain voxel which showed the strongest difference between the experimental conditions.