Modeled electric field strength for different transcranial electrical current stimulation intensities and frequencies
Frequency (Hz) | Intensity (mA) | |||
---|---|---|---|---|
0.5 mA (V/m) | 0.75 mA (V/m) | 1 mA (V/m) | 1.5 mA (V/m) | |
100 Hz | 0.7 | 1.6 | 2.2 | 3.2 |
150 Hz | 0.8 | 1.5 | 2 | 3.1 |
200 Hz | 1.1 | 1.5 | 2.2 | 3.1 |
250 Hz | 1 | 1.6 | 2.2 | 3 |
300 Hz | 1 | 1.6 | 2.1 | 3 |
350 HZ | 1 | 1.5 | 2.1 | 3 |
400 Hz | 1 | 1.5 | 2.1 | 3 |
450 Hz | 1 | 1.5 | 2.2 | 3 |
500 Hz | 1 | 1.5 | 2.2 | 3 |
The modeling shows that that all stimulation frequencies were transmitted to the brain and that the current applied is strong enough to reach the cortex (scaling quasi-linearly with tRNS intensity).