Table 1GP neurones were classified on the basis of visual assessment of current clamp data
Cell type
Ih
Rebound depolarisation
Biphasic AHP
Spontaneous activity
A
+
+
+
−/+
B
−
−
−
+
C
−
−
+
−
Three groups of cells were found to meet these four criteria fully. Neurones, which differed in one or more of these properties,
remained unclassified.