Table 1.
Number of von Economo neurons (VENs) per subject in the human medial frontopolar cortex.
| Subject | Number of sections | Number of VENs | Number of pyramidal cells | Ratio | |||
|---|---|---|---|---|---|---|---|
| A/B | CREST | WALL | CREST | WALL | CREST | WALL | |
| 1 | 8/12 | 8.40 (3.59) | 4.33 (0.88) | 328.40 (30.59) | 319.00 (34.87) | 1:39 | 1:74 |
| 2 | 4/12 | 1.50 (0.50) | 1.00* | 354.50 (47.50) | 398.00 | 1:236 | 1:398 |
| 3 | 5/9 | 2.00 (1.00) | 1.00 (0.00) | 446.50 (23.50) | 464.00 (55.77) | 1:223 | 1:447 |
| 4 | 7/12 | 2.20 (0.73) | 2.00 (1.00) | 304.60 (18.45) | 350.00 (27.00) | 1:138 | 1:175 |
| 5 | 9/12 | 1.20 (0.20) | 1.25 (0.25) | 276.80 (8.10) | 343.30 (26.12) | 1:231 | 1:275 |
The table shows the average number of VENs (SE), the average number of pyramidal cells (SE), and the VENs/Pyramidal cells ratio from all the tissue sections with VENs in each sampled subject. The counting grids (1500 μm × 300 μm) were positioned in those sectors where VENs were observed on sublayer Vb, both on the crests and on the walls of the gyri of human medial BA10. A/B: A corresponds to the number of tissue sections with VENs, and B to the number of sampled tissue sections. *Only one of the analyzed tissue sections had VENs in it. For this reason, no dispersion measure is presented. The other data show the number of neurons found in more than one tissue section.