Table 2
Morphological parameters of L6B neuronal cell types
| Morphological parameters | Pyramidal | Inverted | Tangential | Horizontal | Multipolar | P value |
|---|---|---|---|---|---|---|
| n | 27 | 10 | 10 | 9 | 31 | - |
| Distance soma - white matter (µm) | 112 ± 53 | 128 ± 45 | 130 ± 49 | 106 ± 59 | 93 ± 39 | 0.157 |
| Barrel width (µm)a | 224 ± 46 | 245 ± 33 | 246 ± 556 | 253 ± 41 | 232 ± 60.0 | 0.506 |
| Total dendrite length (µm) | 5096 ± 1059 | 4630 ± 973 | 7006 ± 2024 | 5047 ± 2490 | 7666 ± 2818 | 1.55E-05 |
| No. of dendritic nodes | 32.6 ± 6.2 | 23.2 ± 6.0 | 29.1 ± 10.0 | 26.0 ± 12.4 | 37.8 ± 16.6 | 5.79E-03 |
| Dendritic branching frequency (nodes/100 µm) | 0.06 ± 0.01 | 0.05 ± 0.01 | 0.04 ± 0.01 | 0.05 ± 0.01 | 0.05 ± 0.01 | 6.94E-09 |
| Avg. dendritic field span (µm) | 336 ± 120 | 478 ± 134 | 491 ± 123 | 593 ± 201 | 559 ± 137 | 2.47E-07 |
| Superficial dendrite length (µm) | 2783 ± 1002 | 286 ± 505 | 3267 ± 1893 | 1818 ± 2112 | 3839 ± 2264 | 5.79E-06 |
| Superficial dendrite percentage | 56.2 ± 18.2 | 6.3 ± 11.9 | 44.2 ± 18.8 | 27.0 ± 22.7 | 46.1 ± 21.3 | 1.16E-08 |
| Local/infralaminar dendrite length (µm) | 2207 ± 1026 | 4344 ± 1104 | 3740 ± 1291 | 3229 ± 723 | 3827 ± 1742 | 3.80E-05 |
| Local/infralaminar dendrite percentage | 43.8 ± 18.2 | 93.7 ± 11.9 | 55.8 ± 18.8 | 73.0 ± 22.7 | 53.9 ± 21.3 | 1.16E-08 |
| Columnar dendrite length (µm) | 4560 ± 1010 | 3582 ± 689 | 4681 ± 1311 | 3089 ± 1231 | 4929 ± 2024 | 8.87E-03 |
| Columnar dendrite percentage | 89.6 ± 9.2 | 78.5 ± 10.8 | 67.7 ± 15.8 | 63.7 ± 10.2 | 65.1 ± 11.5 | 5.34E-12 |
| Transcolumnar dendrite length (µm) | 536.0 ± 505 | 1048 ± 592 | 2325 ± 1237 | 1958 ± 1331 | 2737 ± 1397 | 4.62E-10 |
| Transcolumnar dendrite percentage | 10.4 ± 9.2 | 21.6 ± 10.8 | 32.3 ± 15.8 | 36.3 ± 10.2 | 35.0 ± 11.5 | 5.34E-12 |
| Total axon length (µm) | 4639 ± 1562 | 7469 ± 3173 | 8777 ± 4036 | 4538 ± 1220 | 7094 ± 3930 | 8.71E-04 |
| No. of axonal nodes | 13.3 ± 5.2 | 23.6 ± 12.1 | 26.9 ± 22.0 | 14.0 ± 4.9 | 21.6 ± 12.1 | 4.78E-03 |
| Axonal branching frequency (nodes/100 µm) | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.03 ± 0.01 | 0.759 |
| Avg. axonal field span (µm) | 686 ± 383 | 1305 ± 714 | 831 ± 490 | 904 ± 279 | 939 ± 337 | 4.15E-03 |
| Superficial axon length (µm) | 2588 ± 1591 | 1274 ± 1695 | 2959 ± 1478 | 1740 ± 435 | 3095 ± 2609 | 0.084 |
| Superficial axon percentage | 53.2 ± 21.7 | 13.8 ± 16.7 | 34.6 ± 15.2 | 40.7 ± 13.9 | 42.4 ± 19.3 | 1.27E-05 |
| Local/infralaminar axon length (µm) | 2051 ± 879 | 6195 ± 2234 | 5818 ± 3386 | 2798 ± 1235 | 4000 ± 2343 | 2.32E-07 |
| Local/infralaminar axon percentage | 46.8 ± 21.7 | 86.2 ± 16.7 | 65.4 ± 15.2 | 59.3 ± 13.9 | 57.60 ± 19.3 | 1.27E-05 |
| Columnar axon length (µm) | 2479 ± 1123 | 2817 ± 1350 | 4222 ± 1795 | 1910 ± 558 | 2701 ± 1236 | 1.41E-03 |
| Columnar axon percentage | 54.1 ± 19.1 | 39.7 ± 12.8 | 49.6 ± 12.2 | 42.4 ± 7.7 | 41.9 ± 17.2 | 0.033 |
| Transcolumnar axon length (µm) | 2160 ± 1241 | 4652 ± 2618 | 4556 ± 2614 | 2628 ± 883 | 4393 ± 3304 | 3.33E-03 |
| Transcolumnar axon percentage | 46.0 ± 19.1 | 60.3 ± 12.8 | 50.4 ± 12.2 | 57.6 ± 7.7 | 58.1 ± 17.2 | 0.033 |
-
aThe width of the home barrel was defined using horizontal extent of the barrel and half of the septum to either side (cf. Helmstaedter et al. 2009a, 2009b, 2009c).