161Post
1 2 3 4 5 6 7 8 910
11(^12) IHGF E DCB AV AB CD E FGH IV
Med.
Med.
Lat
D Ant. Ant Post
AB
D
CF
E
F
D
BA AB
BA
D
E C
D
C
DE Lat
A
- –++CE
++––
CA-CP CA-CP240 B^140D120
100
80
60
40
20120
100
80
60
40
20220
200
180
160
140
120
100(^80) 24 6 810
0
0
2
2
46 8
468
220
200
180
160
140
120
100
180
60
40
300
200
100
(^00)
900
80
70
60
50
40
(^30) 3 kHz
123456789
2468
(^02) 1 kHz 68
E
1 kHz
500 Hz
400 Hz 1 kHz
2 kHz
2 kHz
3 kHz
4 kHz
VCP VCA VCA VCP
C C
500 Hz 1kHz
Figure 10.5 Mapping of amplitude variations for the 80-ms component (ordinate axis: absolute amplitude
expressed in V; abscissa axis: frequency) recorded from different loci of the lateral part of the right and left HG
referenced to Talairach’s proportional standard grid on the lateral view. On the frontal view, the depth of the most
responsive lead of each patient is reported in the Heschl’s gyrus. The frequencies vary from 250 Hz (first line)to
4 kHz (last line). The peak of the curvecorresponds to the CF (see comments in the text).