Table 6.
Comparison of the main characteristics of the three L5 SOM subtypes
| Laminar position |
Axonal target |
Protein markers |
Electrophysiological characteristic |
SWHH IQR (ms) |
Rin IQR (MΩ) |
Finit IQR (Hz) |
FSS IQR (Hz) |
|
|---|---|---|---|---|---|---|---|---|
| X94 | L4, L5 | L4 | Quasi fast-spiking | 0.35–0.45 | 90–130 | 170–220 | 85–115 | |
| Chrna2 | L5/6 | L1 | CB | High Rin, rebound bursts | 0.45–0.6 | 340–610 | 130–180 | 40–70 |
| Calb2 | L2/3, L5 | L1, L2 | CB, CR, NPY | Low Finit, wider spikes | 0.5–0.8 | 220–300 | 70–100 | 40–60 |
Approximate interquartile range (IQR; 25th to 75th percentiles) is listed for each of the 4 basic parameters plotted in Figure 9. IQRs were largely nonoverlapping between subsets, except for partial overlap of SWHH and the complete overlap of FSS between Chrna2 and Calb2.