Skip to main content
. Author manuscript; available in PMC: 2012 Jun 13.
Published in final edited form as: Exp Brain Res. 2008 Jan 10;186(4):539–550. doi: 10.1007/s00221-007-1258-8

Table 2.

Data for the maximum current density on the cortical surface

Model and position MCDCS % HH CDMax MCDCS location MCDCS relative to coil VerD scalp Area
HHms 3.57 (12.93) 100.0 (29.8, 7.2, 35.3) (−13.3, −0.3, −15.7) 5.7 218.0
975ms 3.20 (11.59) 89.6 (30.5, 9.9, 33.9) (−12.6, 2.4, −17.1) 6.9 228.0
95ms 2.98 (10.80) 83.5 (29.7, 7.6, 33) (−13.4, 0.1, −18.0) 8.3 221.2
925ms 2.78 (10.07) 77.9 (31.6, 7.4, 31) (−11.5, −0.1, −20.0) 9.3 238.0
90ms 2.59 (9.38) 72.5 (28.5, 7.9, 31.1) (−14.6, 0.4, −19.9) 10.4 217.1
875ms 2.45 (8.88) 68.6 (25.9, 12.2, 31) (−17.2, 4.7, −20.0) 11.4 191.2
85ms 2.36 (8.55) 66.1 (22.4, 12.9, 31.1) (−20.7, 5.4, −19.9) 12.4 209.0
HHdlpc 2.82 (10.21) 100.0 (34.5, 45, 29.6) (−9.3, −6, −18.4) 6.5 224.0
975dlpc 2.58 (9.34) 91.5 (34.5, 42.3, 28.86) (−9.3, −8.7, −19.14) 7.7 176.0
95dlpc 2.37 (8.59) 84.0 (33.7, 41.1, 28.1) (−10.1, −9.9, −19.9) 8.9 218.0
925dlpc 2.32 (8.41) 82.3 (33, 43.7, 26.5) (−10.8, −7.3, −21.5) 10.3 170.3
90dlpc 2.27 (8.22) 80.5 (32, 42.7, 25.8) (−11.8, −8.3, −22.2) 11.5 143.0
875dlpc 2.08 (7.53) 73.8 (31.1, 41.8, 24.9) (−12.7, −9.2, −23.1) 12.7 149.0
85dlpc 1.88 (6.81) 66.7 (32.4, 42.9, 22.7) (−11.4, −8.1, −25.3) 14.5 192.4

The first column indicates the model and coil position; where HH stands for healthy head model, ms for the motor strip coil position, dlpc for the dorsal lateral prefrontal cortex coil position, and the number corresponds to the degree of atrophy (i.e., 925ms indicates the 92.5 atrophy model with the coil in motor strip position. The second column indicates the maximum current density on the cortical surface (MCDCS), in A/m2 (and the electric field strength in V/m). The third column indicates the magnitude of the current density on the cortical surface relative to the healthy head model for the coil in the same position. The fourth column provides the MCDCS location in the absolute coordinate system, while the fifth column provides the location relative to the coil center point, and the sixth indicates the vertical distance from the scalp to the MCDCS location. And the final column reports the maximum cortical current surface area