Table 1.
Structural and functional parameters of hippocampal CR cells investigated
| Name | Layer of origin | Projection type | Soma diameter (µm) | Total length dendrites (µm) | Dendritic endings | Total length axons (µm) | Axonal field span (µm) | Axon endings | Post natal age | Rm (GΩ) | Holding current at −60 mV (pA) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 40_23910E | OMLsp | Nonproj. | 16.1 | 367.90 | 3 | 329.0 | 276.50 | 2 | 14 | 4.3 | −8.79 |
| 10_101012A | OMLsp | Nonproj. | 12.0 | 188.30 | 5 | 494.6 | 343.50 | 2 | 15 | 1.7 | −22.90 |
| 45_DEC-16-2010A | OMLip | Nonproj. | 13.9 | 297.80 | 3 | 574.5 | 181.30 | 5 | 11 | 1.4 | −26.37 |
| 2_DEC162010E | OMLsp | Nonproj. | 11.4 | 302.50 | 8 | 1178.0 | 337.40 | 7 | 11 | 1.2 | −14.71 |
| 53_10_DEC_3A | OMLsp | Nonproj. | 13.7 | 294.00 | 1 | 1331.1 | 529.20 | 3 | 15 | 1.2 | −34.11 |
| 8_101014D | OMLsp | Nonproj. | 14.1 | 355.10 | 4 | 1368.0 | 576.10 | 5 | 17 | 4 | −13.86 |
| 51_101102C | OMLsp | Nonproj. | 12.0 | 244.10 | 3 | 1386.2 | 471.60 | 7 | 15 | 2.2 | −9.01 |
| 72_DEC172010A | OMLsp | Nonproj. | 13.8 | 302.40 | 10 | 2206.9 | 971.90 | 12 | 12 | 2.2 | −14.93 |
| 48_10DEC01E | OMLip | Nonproj. | 12.9 | 191.60 | 3 | 2212.4 | 619.20 | 18 | 13 | 1.2 | −32.10 |
| 56_101013E | OMLsp | Nonproj. | 12.5 | 33.70 | 1 | 2344.8 | 655.00 | 10 | 16 | 1.6 | −18.05 |
| 43_10_DEC_3C | OMLip | Nonproj. | 12.3 | 340.70 | 3 | 2928.2 | 855.30 | 9 | 15 | 3 | −11.52 |
| 71_DEC172010H | OMLsp | Nonproj. | 10.2 | 174.70 | 8 | 3208.5 | 999.80 | 15 | 12 | 2.3 | −17.40 |
| 2_DEC162010F | OMLsp | Nonproj. | 12.4 | 88.00 | 1 | 3562.4 | 933.50 | 15 | 11 | 2.9 | −13.98 |
| 33_21910B | SLM | Nonproj. | 13.7 | 223.70 | 8 | 177.7 | 156.00 | 1 | 12 | 1.7 | −24.32 |
| 67_101014A | SLM | Nonproj. | 15.3 | 113.30 | 4 | 708.7 | 269.10 | 5 | 17 | 1.7 | −16.48 |
| 37_101021D | SLM | Nonproj. | 16.2 | 90.00 | 1 | 710.3 | 518.60 | 2 | 16 | 2.7 | −15.10 |
| 35_20910G | SLM | Nonproj. | 9.5 | 305.80 | 6 | 862.2 | 375.90 | 4 | 11 | 1.4 | −22.61 |
| 44_DEC092010C | SLM | Nonproj. | 12.8 | 74.90 | 1 | 1067.9 | 299.70 | 6 | 14 | 2.2 | −17.71 |
| 5_101015D | SLM | Nonproj. | 11.8 | 388.10 | 5 | 1085.2 | 355.90 | 4 | 18 | 1.6 | −29.50 |
| 64_101007F | SLM | Nonproj. | 14.9 | 323.30 | 15 | 1495.3 | 731.90 | 13 | 14 | 1.6 | −28.28 |
| 66_101013E | SLM | Nonproj. | 9.2 | 405.90 | 6 | 1839.0 | 785.70 | 10 | 16 | 1.5 | −18.05 |
| 14_101008G | SLM | Nonproj. | 17.0 | 161.70 | 5 | 1901.5 | 576.40 | 7 | 15 | 2.1 | −14.60 |
| 62_20910A | SLM | Nonproj. | 12.5 | 550.60 | 10 | 2085.4 | 664.90 | 4 | 11 | 1.8 | −18.67 |
| 54_DEC-16-2010C | SLM | Nonproj. | 17.7 | 298.40 | 8 | 2198.3 | 674.50 | 9 | 11 | 1.3 | −28.63 |
| 26_10927H | OMLsp | Local proj. | 13.0 | 161.40 | 1 | 401.3 | 225.30 | 4 | 20 | 1.3 | −8.58 |
| 9_101012E | OMLsp | Local proj. | 11.2 | 264.90 | 1 | 571.2 | 413.40 | 3 | 15 | 2.3 | −23.05 |
| 6_101022B | OMLsp | Local proj. | 14.3 | 230.40 | 8 | 728.6 | 272.60 | 3 | 17 | 2 | −10.81 |
| 65_100810A | OMLsp | Local proj. | 13.8 | 67.40 | 1 | 825.7 | 340.00 | 3 | 15 | 2 | −19.61 |
| 6_101022A | OMLsp | Local proj. | 15.5 | 57.20 | 2 | 923.6 | 402.10 | 3 | 17 | 1.7 | −23.17 |
| 45_DEC-16-2010B | OMLsp | Local proj. | 13.2 | 55.70 | 1 | 975.4 | 321.20 | 4 | 11 | 1.5 | −38.91 |
| 16_101007A | OMLsp | Local proj. | 13.8 | 227.90 | 6 | 983.4 | 223.50 | 4 | 14 | 2.1 | −14.07 |
| 33_21910A | OMLsp | Local proj. | 11.1 | 319.40 | 2 | 1203.0 | 245.30 | 5 | 12 | 2.9 | −12.70 |
| 61_101015E | OMLsp | Local proj. | 13.6 | 17.30 | 1 | 1395.1 | 589.50 | 5 | 18 | 1.8 | −29.04 |
| 69_10929B | OMLsp | Local proj. | 17.5 | 29.60 | 1 | 1818.6 | 474.70 | 7 | 14 | 1.5 | −15.38 |
| 59_101021A | OMLsp | Local proj. | 12.2 | 74.60 | 1 | 1927.2 | 496.20 | 9 | 16 | 1.6 | −26.05 |
| 1_DEC162010G | OMLsp | Local proj. | 15.6 | 88.20 | 2 | 2132.4 | 451.20 | 9 | 11 | 2.6 | −10.43 |
| 69_10929A | OMLsp | Local proj. | 16.2 | 156.30 | 8 | 2395.5 | 719.70 | 9 | 14 | 1.7 | −10.09 |
| 60_DEC172010C | OMLsp | Local proj. | 15.0 | 73.80 | 1 | 3255.1 | 629.90 | 11 | 12 | 1.7 | −18.22 |
| 73_DEC152010A | OMLsp | Local proj. | 19.0 | 270.90 | 14 | 3612.9 | 532.50 | 25 | 18 | 1.3 | −26.13 |
| 49_101103A | OMLsp | Local proj. | 10.4 | 178.80 | 2 | 3914.4 | 831.00 | 11 | 16 | 1.5 | −25.06 |
| 7_101013A | SLM | Local proj. | 10.2 | 534.20 | 19 | 468.9 | 128.10 | 4 | 16 | 2.3 | −6.03 |
| 23_10929E | SLM | Local proj. | 14.1 | 285.50 | 9 | 533.1 | 253.50 | 3 | 14 | 2.5 | −14.69 |
| 26_10927G | SLM | Local proj. | 12.6 | 40.40 | 1 | 866.1 | 390.20 | 6 | 20 | 2.3 | −5.43 |
| 75_20930G | SLM | Local proj. | 9.2 | 295.60 | 9 | 1456.7 | 479.00 | 4 | 15 | 2.2 | −21.99 |
| 74_10DEC1D | SLM | Local proj. | 11.7 | 315.10 | 11 | 3122.7 | 695.00 | 13 | 13 | 1.6 | −20.58 |
| 63_20910C | SLM | Local proj. | 14.4 | 408.50 | 9 | 4391.2 | 794.50 | 24 | 11 | 1.4 | −23.21 |
| 57_101020C | OMLsp | Long-range proj. | 11.8 | 413.70 | 18 | 1237.8 | 465.10 | 4 | 15 | 2.2 | −27.08 |
| 46_101014E | OMLsp | Long-range proj. | 11.6 | 265.60 | 4 | 1399.5 | 333.10 | 10 | 17 | 1.6 | −11.85 |
| 52_101020A | OMLsp | Long-range proj. | 10.9 | 82.70 | 1 | 1446.8 | 427.80 | 8 | 15 | 1.8 | −18.58 |
| 47_10_DEC_1A | OMLip | Long-range proj. | 14.1 | 351.30 | 1 | 1476.6 | 272.90 | 3 | 13 | 1.2 | −53.49 |
| 12_101011E | OMLsp | Long-range proj. | 17.8 | 165.60 | 5 | 1551.0 | 633.70 | 7 | 14 | 1.3 | −16.86 |
| 25_10929G | OMLsp | Long-range proj. | 12.3 | 135.30 | 1 | 1993.3 | 683.50 | 8 | 14 | 3.2 | −7.24 |
| 75_20930F | OMLsp | Long-range proj. | 11.7 | 277.40 | 4 | 2164.6 | 745.80 | 6 | 15 | 1.7 | −18.26 |
| 71_DEC172010G | OMLsp | Long-range proj. | 10.9 | 90.60 | 2 | 2488.7 | 952.60 | 8 | 12 | 1.4 | −19.57 |
| 5_101015C | OMLsp | Long-range proj. | 12.1 | 361.80 | 8 | 3115.8 | 918.40 | 6 | 18 | 1.9 | −21.46 |
| 60_DEC172010D | OMLsp | Long-range proj. | 14.9 | 409.60 | 2 | 3134.0 | 1486.50 | 15 | 12 | 2.1 | −0.35 |
| 64_101007E | OMLsp | Long-range proj. | 12.4 | 202.90 | 4 | 3590.6 | 862.40 | 13 | 14 | 1.7 | −18.30 |
| 3_101021F | OMLsp | Long-range proj. | 11.0 | 162.50 | 5 | 3603.2 | 1050.00 | 22 | 16 | 2 | −17.73 |
| 70_DEC-09-2010E | OMLip | Long-range proj. | 10.6 | 166.90 | 1 | 3843.8 | 1138.70 | 15 | 14 | 1.4 | −26.81 |
| 54_DEC-16-2010D | OMLsp | Long-range proj. | 13.5 | 60.40 | 22 | 4218.8 | 933.60 | 9 | 11 | 2.6 | −11.34 |
| 36_15910C | OMLsp | Long-range proj. | 15.6 | 72.00 | 2 | 6675.2 | 1327.30 | 29 | 6 | 1.3 | −23.58 |
| 42_DEC082010E | SLM | Long-range proj. | 8.5 | 450.10 | 2 | 927.7 | 496.80 | 5 | 15 | 2.7 | −16.38 |
| 11_101012D | SLM | Long-range proj. | 14.6 | 497.80 | 20 | 1238.1 | 498.00 | 4 | 15 | 3.5 | −7.63 |
| 52_101020B | SLM | Long-range proj. | 10.6 | 266.00 | 7 | 1312.9 | 651.00 | 4 | 15 | 2.7 | −18.18 |
| 31_23910C | SLM | Long-range proj. | 13.3 | 200.70 | 3 | 1348.3 | 462.50 | 4 | 14 | 1.9 | −10.09 |
| 68_101021E | SLM | Long-range proj. | 8.8 | 316.00 | 4 | 1924.6 | 680.60 | 9 | 16 | 3.1 | −7.59 |
| 58_101020E | SLM | Long-range proj. | 9.4 | 202.10 | 2 | 2030.8 | 929.10 | 9 | 15 | 3.6 | −13.28 |
| 57_101020D | SLM | Long-range proj. | 10.1 | 10.00 | 1 | 3068.6 | 1147.90 | 10 | 15 | 2.6 | −6.60 |
| Mean | 12.97 | 226.92 | 5.16 | 1896.31 | 590.66 | 8.1 | 14.3 | 2.03 | −18.34 | ||
| SD | 2.3 | 133.26 | 5.0 | 1211.1 | 289.9 | 5.7 | 2.4 | 0.7 | 8.7 | ||
| Max | 19.0 | 550.60 | 22.0 | 6675.2 | 1486.5 | 29.0 | 20.0 | 4.3 | −0.4 | ||
| Min | 8.5 | 10.00 | 1.0 | 177.7 | 128.1 | 1.0 | 6.0 | 1.2 | −53.5 |
Note: Quantitative and qualitative parameters based on NEUROLUCIDA reconstructions and electrophysiological examination of hippocampal CR cells (n = 68). The projection type was determined by the individual axonal arborization. All numerical values are summarized by mean-, SD-, maximum- and minimum- values. SLM, stratum lacunosum-moleculare, OMLsp and OMLip, supra- and infrapyramidal blade of the outer molecular layer of the dentate gyrus, respectively.