ACSFR conductivity (S/m) | |||||
---|---|---|---|---|---|
Current amplitude, n = 6 | Electrode distance, n = 6 | ||||
Frequency | 175 pA | 300 pA | 500 pA | 100 µm | 125 µm |
5 Hz | 1.03 ± 0.02 | 1.24 ± 0.00 | 1.16 ± 0.00 | 1.07± 0.14 | 1.23 ± 0.03 |
60 Hz | 1.29 ± 0.02 | 1.26 ± 0.03 | 1.27 ± 0.01 | 1.23 ± 0.01 | 1.27± 0.02 |
100 Hz | 1.23 ± 0.05 | 1.30 ± 0.02 | 1.27 ± 0.01 | 1.29 ± 0.01 | 1.24 ± 0.03 |
300 Hz | 1.36 ± 0.04 | 1.42 ± 0.02 | 1.39 ± 0.03 | 1.42 ± 0.01 | 1.36 ± 0.03 |
500 Hz | 1.55 ± 0.06 | 1.60 ± 0.03 | 1.56 ± 0.00 | 1.60 ± 0.02 | 1.54± 0.03 |
ACSFc conductivity (S/m) | |||||
Current amplitude, n = 12 | Electrode distance, n = 12 | ||||
Frequency | 175 pA | 300 pA | 500 pA | 100 µm | 125 µm |
5Hz | 0.46 ± 0.05 | 0.49 ± 0.04 | 0.48 ± 0.02 | 0.49 ± 0.03 | 0.46 ± 0.03 |
60Hz | 0.52 ± 0.02 | 0.51 ± 0.02 | 0.50 ± 0.02 | 0.51 ± 0.02 | 0.52 ± 0.02 |
100Hz | 0.55 ± 0.03 | 0.53 ± 0.02 | 0.53 ± 0.02 | 0.52 ± 0.02 | 0.55 ± 0.02 |
300Hz | 0.59 ± 0.03 | 0.60 ± 0.03 | 0.59 ± 0.04 | 0.57 ± 0.03 | 0.61 ± 0.02 |
500Hz | 0.63 ± 0.04 | 0.64 ± 0.05 | 0.63 ± 0.05 | 0.62 ± 0.03 | 0.65 ± 0.03 |
Brain slice conductivity (S/m) | |||||
Current amplitude, n = 54 | Electrode distance, n = 54 | ||||
Frequency | 175 pA | 300 pA | 500 pA | 100 µm | 125 µm |
5 Hz | 0.37 ± 0.03 | 0.37 ± 0.04 | 0.38 ± 0.04 | 0.37 ± 0.03 | 0.38 ± 0.03 |
60 Hz | 0.40 ± 0.04 | 0.41 ± 0.04 | 0.42 ± 0.04 | 0.41 ± 0.04 | 0.41 ± 0.03 |
100 Hz | 0.43 ± 0.05 | 0.42 ± 0.05 | 0.43 ± 0.05 | 0.42 ± 0.04 | 0.43 ± 0.04 |
300 Hz | 0.48 ± 0.05 | 0.47 ± 0.05 | 0.47 ± 0.05 | 0.47 ± 0.04 | 0.48 ± 0.04 |
500 Hz | 0.55 ± 0.05 | 0.54 ± 0.05 | 0.54 ± 0.05 | 0.53 ± 0.04 | 0.56 ± 0.04 |
Current amplitude and electrode distance do not affect the frequency-dependent increase in conductivity. Groups were compared using two-way ANOVA. Overall test statistics: ACSFR: amplitude, F(8) = 0.45, p = 0.88; distance, F(4) = 2.15, p = 0.11; ACSFC: amplitude, F(8) = 0.06, p = 0.99; distance, F(4) = 0.57, p = 0.68; brain slice amplitude: amplitude, F(8) = 0.02, p = 1.00; distance, F(4) = 0.14, p = 0.96.