Figure 8. Magnetic threshold correlates with current threshold in realistic morphologies.

Neurons were located at the center of the matrix as in Figure 4. Distance from the plane of the coil was 1 cm, coil radius was 2 cm, 30 loops to the coil. The underdamped pulse was used (R = 0.09 Ω; L = 13 µH; C = 200 µF; τ = 0.4 ms). Excitability was added to all cells using two different models of L5 pyramidal neurons - Larkum et al.'s model (2009) [38] (green) and Schaefer et al.'s model (2003) [27] (black). The magnetic threshold correlated with current threshold in pyramidal cell with different current thresholds. Sodium channel activation and inactivation were shifted towards hyperpolarizing potentials to reduce current threshold.