Table 1
Passive and active properties of principal cells in LII/III of the EC
n Firing pattern | PYR | ST | |
---|---|---|---|
18 | 15 | ||
Regular-adapting | Regular-adapting | ||
Passive properties | RMP (mV) | -75.4 ± 0.8* (-82 to -70) | -72.3 ± 0.7* (-78 to -68) |
Input resistance (MΩ) | 242 ± 21* (125 to 400) | 149 ± 16* (80 to 260) | |
Time constant (ms) | 34.5 ± 2.2* (22 to 60) | 20.8 ± 2.8* (11 to 49) | |
SAG ratio (%) | 7.6 ± 0.7* (4 to 13) | 31.9 ± 2.9* (7 to 53) | |
Active properties | AP-threshold (mV) | -53.8 ± 0.4 (-56 to -51) | -52.8 ± 0.8 (-58 to -43 |
AP amplitude (mV) | 88.6 ± 1.96 (68 to 98) | 85.6 ± 1.2 (78 to 95) | |
AP half-height-width (ms) | 1.1 ± 0.04* (0.9 to 1.62) | 0.98 ± 0.04* (0.52 to 1.24) | |
dV/dt ratio (min/max) | -0.18 ± 0.01* (-0.24 to -0.13) | -0.22 ± 0.01* (-0.34 to -0.16) | |
Adaptation (%) | 27 ± 5* | 35 ± 15* | |
DAP | No | No 13; Yes 2 | |
EPSP | ampl (mV) | 8.5+2.9* | 2.5 ± 1.2* |
Frequency (Hz) |
-
Values are reported in mean ± SEM.
-
RMP, resting membrane potential. DAP, depolarizing after-potential current.
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*Statistically significant differences between neuronal classes (P < 0.05), t-test was used. Numbers in parentheses indicate the range (min-max).