Table 1.
Cortical layers | Subject | Depth of recording (μm) |
||
Upper edge | Lower edge | Thickness | ||
Layer I | H1 | −82 ± 109 | 25 ± 107 | 107 ± 21 |
H3 | −320 ± 478 | −96 ± 503 | 194 ± 224 | |
H2 | −642 ± 537 | −404 ± 545 | 238 ± 10 | |
Layers II and III | H1 | 25 ± 107 | 610 ± 144 | 585 ± 103 |
H3 | −96 ± 503 | 753 ± 502 | 841 ± 849 | |
H2 | −404 ± 545 | 454 ± 554 | 858 ± 124 | |
Layer IV | H1 | 610 ± 144 | 822 ± 159 | 212 ± 42 |
H3 | 753 ± 502 | 1050 ± 489 | 259 ± 297 | |
H2 | 454 ± 554 | 729 ± 586 | 275 ± 45 | |
Layer V | H1 | 822 ± 159 | 1072 ± 204 | 250 ± 46 |
H3 | 1050 ± 489 | 1382 ± 497 | 280 ± 331 | |
H2 | 729 ± 586 | 1021 ± 573 | 292 ± 44 | |
Layer VI | H1 | 1072 ± 204 | 1355 ± 222 | 284 ± 26 |
H3 | 1382 ± 497 | 1693 ± 536 | 288 ± 311 | |
H2 | 1021 ± 573 | 1309 ± 591 | 288 ± 79 |
Note: The depth was measured from the site where the first extracellular activity was observed at each penetration site. Thus, depth = 0 does not necessarily correspond to the surface of the cortex or the border between layers I and II.