Table 2.
Relation between firing pattern and dye coupling in CA1 PCs perfused with Ca2+-free saline
| PC type | n | Number of dye-coupled clusters | Incidence of dye coupling (%) |
|---|---|---|---|
| NB | 10 | 2 | 20.0 |
| HTB | 10 | 3 | 30.0 |
| Grade I LTB | 9 | 2 | 22.2 |
| Grade II LTB | 8 | 2 | 25.0 |
| Grade III LTB | 9 | 1 | 11.1 |
| Total | 46 | 10 | 21.7 |
The biocytin-stained CA1 PCs (n = 46) were grouped according to their firing mode in nominally Ca2+-free saline. For each subset of PCs, the number of dye-coupled clusters observed and the overall incidence of dye coupling are provided. NB, Nonburster; HTB, high-threshold burster; LTB, low-threshold burster.