Table 2. Exocytotic Parameters Obtained for the Concurrent Spikes of Figure 4, at Different Electrodes^a.

	E1	E2	E4	E5	total
N (× 103 molecules)	92	93	87	52	91 ± 4.1
ip (pA)	2.1	2.7	2.0	2.1	2.8 ± 0.2
tfall (ms)	9.3	3.1	9.1	6.9	5.9 ± 0.3

^aThe values obtained for the total population of events, over the 8 electrodes, is presented in the column “total” (143 events, average ± SEM).