Size and electrophysiological properties of ECVI neurons
| Cm (pF) | ∅ (μm) | RMP (mV) | FTP (mV) | fspiking (Hz) | Rinput (MΩ) | Ih (pA) | |
|---|---|---|---|---|---|---|---|
| CA1SO | 22.6 ± 1.4 (22)* | 17.8 ± 0.6 (33) | −62.9 ± 1.1 (32)* | −56.0 ± 1.4 (21) | 37.8 ± 4.9 (21)* | 376.7 ± 23.1 (28)* | 26.4 ± 3.4 (25)* |
| CA1PY | 23.5 ± 2.2 (23)* | 15.2 ± 0.4 (31)* | −64.8 ± 0.7 (30)* | −55.7 ± 0.6 (26) | 17.2 ± 1.3 (26)* | 265.1 ± 27.8 (33) | 29.2 ± 1.6 (26)* |
| CA1PYInt | 19.0 ± 6.0 (2) | 15.5 ± 2.2 (2) | −67.7 ± 1.8 (3) | −59.5 ± 4.5 (2) | 48.0 ± 12.0 (2) | 381.7 ± 72.4 (2) | 23.8 ± 8.8 (2) |
| CA1SR | 22.7 ± 0.8 (82)* | 17.8 ± 0.2 (163) | −62.7 ± 0.4 (146)* | −53.5 ± 0.3 (76) | 34.5 ± 1.1 (76)* | 409.1 ± 13.2 (137)* | 21.9 ± 1.6 (103)* |
| CA1SLM | 17.5 ± 1.9 (11)* | 17.4 ± 0.8 (18) | −61.8 ± 1.2 (18)* | −54.7 ± 1.0 (6) | 41.0 ± 5.0 (6)* | 491.4 ± 52.8 (17)* | 13.2 ± 6.8 (9) |
| SbPY | 37.1 ± 5.0 (7) | 17.7 ± 0.5 (7) | −65.8 ± 0.9 (7) | −57.0 ± 1.8 (5) | 12.0 ± 3.9 (6) | 280.5 ± 23.8 (16) | 12.1 ± 2.3 (16) |
| SbSO | 34.5 ± 2.8 (16) | 17.3 ± 0.4 (14) | −70.6 ± 1.7 (14)* | −54.3 ± 0.9 (15) | 20.1 ± 2.7 (15) | 134.0 ± 20.6 (8) | 24.9 ± 4.6 (6)* |
| ECII | 43.9 ± 5.7 (10) | 18.5 ± 0.4 (10) | −65.0 ± 0.3 (10)* | −53.3 ± 0.9 (4) | 12.5 ± 3.8 (4) | 171.5 ± 36.0 (10) | 21.0 ± 3.0 (4) |
| ECIII | 35.9 ± 4.1 (14) | 17.7 ± 0.5 (14) | −64.7 ± 1.9 (9)* | −57.2 ± 0.6 (6) | 16.0 ± 1.3 (6) | 168.6 ± 6.8 (14) | 12.6 ± 8.6 (4) |
| ECV | 26.1 ± 1.5 (38) | 14.1 ± 0.3 (36)* | −71.0 ± 1.1 (21) | −54.4 ± 1.1 (31) | 17.6 ± 1.8 (31) | 289.7 ± 12.0 (42) | 12.3 ± 1.5 (33) |
| ECVI | 36.6 ± 1.5 (48) | 16.8 ± 0.3 (49) | −73.0 ± 1.2 (34) | −53.2 ± 0.4 (45) | 21.5 ± 0.8 (45) | 271.9 ± 8.4 (54) | 4.3 ± 0.9 (45) |
Data shown are average ± SEM. Numbers in parentheses were numbers of neurons examined. Cm, Whole-cell capacitance; ∅, soma diameter; FTP, firing threshold potential; fspiking, frequency of spiking evoked by 500 ms, 150 pA depolarization current; Rinput, input resistance; Ih, h-current calculated from the voltage sag during 500 ms of membrane hyperpolarization.
↵*Values significant from ECVI neurons (p < 0.05, one-way ANOVA followed by post hoc Dunnet's multiple comparison test). CA1PYInt, CA1 pyramidal layer interneurons. Other abbreviations are the same as in Table 1.