Relation between firing pattern and dye coupling in CA1 PCs perfused with Ca2+-free saline
Number of dye-coupled clusters
Incidence of dye coupling (%)
Grade I LTB
Grade II LTB
Grade III LTB
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.