Biomedical Engineering Reference
In-Depth Information
*10
-3
0.04
0.06
0.08
0.10
0.12
0.14
(a)
MI value
14
13
12
11
10
9
−5
−4
−3
−2
−1
0
1
2
3
4
5
Time (s)
(b)
200
150
100
100
50
30
0
13
-100
9
2
−5
−4
−3
−2
−1
0
1
2
3
4
5
Time (s)
Fig. 9.4 a
Modulation index (MI) time courses for the 11 sub-bands of the LF signal. The lPAC
activity at Region A was analyzed, and the HF signal is fixed to 75
±
25 Hz.
Sizes
of the
circles
represent the values of the modulation index, and their
colors
represent the LF sub-bands. A
dotted
circle
indicates an lPAC activity with the LF band near 10 Hz observed when a significantly strong
ERD is observed near 10 Hz.
b
The time-frequency representation of the (broadband) voxel time
courses at Region A. The TF representation shows relative power change from the baseline, which
is
color-coded
and displayed according the
color bar
. The time origin is defined as the onset of
hand grasping
