Table 2. Statistical analysis was performed using these measurements from 20 pup brains and 2 adult brains.
| Age | Animal | Placement | Total Area | WM | Cortex | Subplate | Fasc. | |
| 1 | P0-1 | 697.1 | anterior | 17.4 mm2 | 56.1% | 60.1% | 39.0% | 35.7% |
| 2 | P0-1 | 675.2 | anterior | 15.0 mm2 | 23.1% | 50.8% | 20.9% | 20.0% |
| 3 | P0-1 | 704.2 | anterior | 16.0 mm2 | 25.1% | 36.1% | 12.1% | 16.9% |
| 4 | P0-1 | 678.1 | anterior | 15.6 mm2 | 58.3% | 62.6% | 50.4% | 53.9% |
| 5 | P0-1 | 678.2 | posterior | 18.1 mm2 | 21.2% | 38.1% | 19.5% | 33.2% |
| 6 | P0-1 | 675.1 | posterior | 16.4 mm2 | 50.2% | 73.6% | 49.6% | 56.7% |
| 7 | P0-1 | 678.4 | posterior | 17.5 mm2 | 23.4% | 55.7% | 31.9% | 35.0% |
| 8 | P2-3 | 695.3 | anterior | 18.3 mm2 | 48.2% | 66.1% | 30.8% | 37.1% |
| 9 | P2-3 | 710.1 | middle | 16.7 mm2 | 67.0% | 79.4% | 32.8% | 33.5% |
| 10 | P2-3 | 695.2 | middle | 19.2 mm2 | 49.4% | 88.2% | 36.6% | 46.4% |
| 11 | P2-3 | 679.1 | posterior | 25.0 mm2 | 35.4% | 59.0% | 39.4% | 22.8% |
| 12 | P4-5 | 671.4 | anterior | 30.8 mm2 | 32.0% | 59.1% | 23.1% | 17.9% |
| 13 | P4-5 | 680.4 | middle | 31.4 mm2 | 20.5% | 53.8% | 16.1% | 16.9% |
| 14 | P4-5 | 697.3 | posterior | 28.6 mm2 | 35.7% | 40.6% | 31.0% | 10.8% |
| 15 | P6-7 | 680.5 | anterior | 35.9 mm2 | 32.1% | 50.9% | 29.2% | 22.6% |
| 16 | P6-7 | 669.5 | anterior | 40.2 mm2 | 25.6% | 71.3% | 22.7% | 24.9% |
| 17 | P6-7 | 683.3 | posterior | 44.6 mm2 | 48.7% | 52.2% | 43.3% | 29.1% |
| 18 | P8-9 | 672.8 | anterior | 39.6 mm2 | 46.3% | 81.2% | 47.1% | 48.0% |
| 19 | P8-9 | 671.6 | anterior | 37.2 mm2 | 22.8% | 73.4% | 23.7% | 14.8% |
| 20 | P8-9 | 701.3 | posterior | 35.7 mm2 | 40.9% | 71.8% | 47.5% | 33.6% |
Total isocortical area is expressed in mm2 and axonal coverage in each substrate is expresses as a fraction of total isocortical area. Abbreviation: white matter, WM; infracortical fasciculus, fasc.