Table 3.
Absolute median current density in 100% head volume and percentage differences in median current density with respect to the reference (100%) head volume for precentral gyrus, inferior frontal gyrus, anterior superior temporal gyrus, hippocampus and occipital lobe in Anisotropic (top) and Isotropic (bottom) cases for three electrode configurations. Dark shaded text denotes values in the presumed tissue target for each electrode configuration T7-T8 (blue), F3RS (green), Cz-Oz (purple). Negative values indicate the reference median current density was larger than reduced volume median current density
| ANISOTROPIC | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| %Vol. | 100 |Jmedian| (A/m2) |
95 (% diff) |
90 (% diff) |
85 (% diff) |
80 (% diff) |
75 (% diff) |
70 (% diff) |
65 (% diff) |
60 (% diff) |
| Config. | |||||||||
| Precentral gyrus | |||||||||
| T7T8 | 0.018 | 0.0 | −0.3 | −0.7 | 1.2 | −0.1 | 2.3 | 1.2 | 1.6 |
| F3RS | 0.011 | 0.0 | 3.7 | 3.4 | 2.8 | 5.8 | 4.9 | 7.3 | 9.0 |
| CzOz | 0.013 | 3.0 | 3.0 | 2.7 | 2.1 | 4.5 | 2.6 | 1.7 | −4.3 |
| Inferior frontal gyrus | |||||||||
| T7T8 | 0.012 | 3.4 | 3.1 | 2.8 | 2.4 | 4.5 | 5.8 | 8.9 | 8.2 |
| F3RS | 0.021 | 0.0 | 0.0 | 1.6 | 1.0 | 2.3 | 3.2 | 3.9 | 3.9 |
| CzOz | 0.012 | 0.0 | 0.0 | −0.3 | −0.9 | −1.5 | −3.2 | −10.0 | −15.3 |
| Anterior superior temporal gyrus | |||||||||
| T7T8 | 0.018 | 2.3 | 1.9 | 3.9 | 8.0 | 11.1 | 15.5 | 20.4 | 24.2 |
| F3RS | 0.016 | 0.0 | 0.0 | 2.3 | 4.2 | 6.1 | 10.2 | 16.4 | 21.7 |
| CzOz | 0.010 | 0.0 | 0.0 | −0.3 | −0.9 | −5.4 | −7.1 | −14.3 | −22.8 |
| Hippocampus | |||||||||
| T7T8 | 0.017 | 0.0 | 2.0 | 1.7 | 3.6 | 6.8 | 9.3 | 10.2 | 14.6 |
| F3RS | 0.012 | 0.0 | 0.0 | 3.1 | 2.5 | 5.3 | 11.2 | 13.2 | 17.9 |
| CzOz | 0.011 | 0.0 | 0.0 | 3.4 | 2.8 | 5.8 | 3.9 | −3.4 | −12.3 |
| Occipital lobe | |||||||||
| T7T8 | 0.016 | 2.6 | 2.2 | 1.9 | 4.1 | 7.8 | 8.2 | 12.0 | 19.5 |
| F3RS | 0.005 | 0.0 | 0.0 | −0.3 | −0.9 | 6.1 | 5.2 | 11.4 | 24.2 |
| CzOz | 0.018 | 0.0 | 0.0 | 1.9 | 3.4 | 4.9 | 9.4 | 11.4 | 14.4 |
| ISOTROPIC | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| %Vol. | 100 |Jmedian| (A/m2) |
95 (% diff) |
90 (% diff) |
85 (% diff) |
80 (% diff) |
75 (% diff) |
70 (% diff) |
65 (% diff) |
60 (% diff) |
| Config. | |||||||||
| Precentral gyrus | |||||||||
| T7T8 | 0.012 | 0.0 | 0.3 | 0.3 | 1.3 | 2.0 | 2.9 | 3.5 | 3.1 |
| F3RS | 0.010 | 0.0 | 3.5 | 3.5 | 2.9 | 6.1 | 5.1 | 7.6 | 9.4 |
| CzOz | 0.014 | 0.0 | 0.0 | −0.3 | −0.9 | 1.3 | −0.5 | −1.5 | −7.3 |
| Inferior frontal gyrus | |||||||||
| T7T8 | 0.011 | −0.3 | −0.3 | −0.7 | 2.7 | 1.3 | 2.9 | 3.4 | 6.6 |
| F3RS | 0.020 | 0.0 | −0.3 | −0.3 | −0.9 | 0.4 | 1.5 | 2.2 | 2.3 |
| CzOz | 0.011 | 0.0 | 0.0 | 3.4 | 2.8 | 2.1 | 0.3 | −6.8 | −12.3 |
| Anterior superior temporal gyrus | |||||||||
| T7T8 | 0.016 | −0.3 | −0.3 | 1.7 | 3.8 | 9.6 | 14.5 | 18.0 | 22.8 |
| F3RS | 0.014 | 0.0 | 2.6 | 2.6 | 4.9 | 7.2 | 12.0 | 16.4 | 22.7 |
| CzOz | 0.009 | 0.0 | 0.0 | −0.3 | −0.9 | −1.5 | −7.5 | −14.9 | −23.7 |
| Hippocampus | |||||||||
| T7T8 | 0.018 | −0.3 | 1.9 | 1.6 | 3.5 | 6.6 | 8.8 | 10.0 | 14.4 |
| F3RS | 0.011 | 0.0 | 3.3 | 3.3 | 6.2 | 9.1 | 11.6 | 13.7 | 18.5 |
| CzOz | 0.010 | 0.0 | −0.3 | 3.4 | 2.7 | 5.8 | 3.9 | −6.9 | −15.7 |
| Occipital lobe | |||||||||
| T7T8 | 0.015 | −0.3 | 2.4 | 2.0 | 4.3 | 5.6 | 8.7 | 10.6 | 19.1 |
| F3RS | 0.003 | 0.0 | −0.3 | 4.2 | 8.1 | 7.5 | 15.4 | 14.0 | 29.3 |
| CzOz | 0.017 | 0.0 | 2.3 | 2.0 | 3.7 | 5.4 | 10.3 | 12.7 | 16.3 |