Table 3.
Minimal spanning trees (MSTs) simulation parameters. 16 STG neuronal structures were simulated using MST analyses from the TREES toolbox (Cuntz et al., 2010). Carrier point numbers (column 4) were tuned to generate MSTs with branch point numbers within 20% of the branch point counts in the actual neurons (column 2, gray shaded). MSTs were generated for balancing factors between 0 and 0.6, at increments of 0.1. Columns 5–18 show branch point numbers and cable lengths for each of these MSTs. The MSTs often had cable lengths within 20% of that measured in the actual neurons (column 3), but in some cases, the MSTs were not a close approximation of the actual cable length.
|
Cell |
Actual neuron |
Minimum spanning trees |
|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Branch Points |
Cable length |
Carrier Points |
Branch point numbers |
Cable length (x 104 µm) |
|||||||||||||
0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
0 |
0.1 |
0.2 |
0.3 |
0.4 |
0.5 |
0.6 |
||||
|
GM1 |
2671 |
6.1 |
8500 |
2416 |
2477 |
2512 |
2576 |
2727 |
2916 |
2971 |
16.8 |
17.2 |
17.7 |
18.2 |
19.0 |
19.9 |
20.7 |
|
GM2 |
7125 |
8.9 |
23000 |
6296 |
6789 |
7030 |
7271 |
7592 |
7773 |
7994 |
2.5 |
2.6 |
2.7 |
2.8 |
2.9 |
3.1 |
3.3 |
|
GM3 |
2675 |
4.6 |
8800 |
2384 |
2537 |
2665 |
2749 |
2827 |
2959 |
3026 |
5.5 |
5.7 |
5.9 |
6.1 |
6.4 |
6.8 |
7.3 |
|
GM4 |
5984 |
10.4 |
19000 |
5274 |
5574 |
5762 |
5969 |
6187 |
6379 |
6571 |
14.3 |
14.7 |
15.2 |
15.8 |
16.6 |
17.5 |
18.8 |
|
LG1 |
2002 |
2.0 |
6500 |
1746 |
1860 |
1976 |
2092 |
2154 |
2209 |
2302 |
1.7 |
1.8 |
1.9 |
1.9 |
2.0 |
2.1 |
2.3 |
|
LG2 |
705 |
1.0 |
2300 |
641 |
672 |
696 |
710 |
750 |
768 |
815 |
1.5 |
1.5 |
1.6 |
1.7 |
1.7 |
1.8 |
2.0 |
|
LG3 |
2460 |
4.3 |
8000 |
2168 |
2302 |
2389 |
2498 |
2559 |
2612 |
2707 |
4.3 |
4.4 |
4.6 |
4.8 |
5.0 |
5.3 |
5.7 |
|
LG4 |
2311 |
4.9 |
7500 |
2050 |
2189 |
2282 |
2346 |
2430 |
2502 |
2603 |
2.4 |
2.4 |
2.5 |
2.6 |
2.8 |
2.9 |
3.1 |
|
LP1 |
2015 |
4.1 |
6550 |
1825 |
1957 |
1998 |
2059 |
2126 |
2195 |
2263 |
3.3 |
3.3 |
3.5 |
3.6 |
3.8 |
4.0 |
4.3 |
|
LP2 |
704 |
1.8 |
2330 |
649 |
666 |
706 |
716 |
748 |
773 |
788 |
2.0 |
2.1 |
2.1 |
2.2 |
2.3 |
2.5 |
2.6 |
|
LP3 |
499 |
1.4 |
1705 |
452 |
493 |
509 |
534 |
531 |
560 |
574 |
1.6 |
1.7 |
1.7 |
1.8 |
1.9 |
2.0 |
2.1 |
|
LP4 |
1708 |
2.4 |
5650 |
1574 |
1639 |
1697 |
1743 |
1819 |
1883 |
1921 |
3.8 |
3.9 |
4.0 |
4.2 |
4.4 |
4.6 |
5.0 |
|
PD1 |
424 |
1.9 |
1400 |
370 |
398 |
422 |
444 |
442 |
464 |
501 |
1.6 |
1.7 |
1.8 |
1.8 |
1.9 |
2.0 |
2.2 |
|
PD2 |
418 |
1.5 |
1400 |
383 |
406 |
426 |
425 |
455 |
460 |
477 |
1.2 |
1.2 |
1.3 |
1.3 |
1.4 |
1.5 |
1.6 |
|
PD3 |
1597 |
3.0 |
5000 |
1344 |
1462 |
1519 |
1587 |
1667 |
1724 |
1776 |
3.3 |
3.4 |
3.5 |
3.7 |
3.8 |
4.1 |
4.3 |
|
PD4 |
410 |
1.7 |
1300 |
363 |
389 |
397 |
396 |
429 |
442 |
451 |
1.2 |
1.3 |
1.3 |
1.4 |
1.4 |
1.5 |
1.6 |