Table 1.

Detected and correlated spontaneous events in newborn and mature GCs

	Amplitude (pA)	Rise (ms)	Decay τ (ms)	Frequency (Hz)	% Correlated
Newborn GC
Slow	16.6 ± 2.8	3.6 ± 0.7	88 ± 6.0	0.065 ± 0.018	21.5 ± 4.5
Slow correlated	2.7 ± 1.0	4.2 ± 1.2	89 ± 7.2	0.013 ± 0.003	—
Mature GC
Fast	62 ± 6.7	0.54 ± 0.03*	27.1 ± 1.5	3.05 ± 0.7	—
Fast correlated	—	—	—	—	—
Slow	31.0 ± 7.3	4.0 ± 0.2	44.0 ± 3.3#	1.03 ± 0.3	1.4 ± 0.3
Slow correlated	17.1 ± 7.3	4.0 ± 0.5	49.7 ± 6.5#	0.013 ± 0.003	—

Spontaneous events were detected with either a fast template (0.5 ms rise time and 10 ms decay) or a slow template (5 ms rise and 50 ms decay). After detection, correlated events emerged from the averages of the aligned time windows in the simultaneously recorded cell. The amplitude, rise, and decay of correlated events were measured from the average of all traces. The frequency of correlated events was the average number of coincident events per second. The percentage correlated was calculated as the number of correlated events in the simultaneously recorded cell/total number of detected events.

*Different from slow events;

^#different from fast events in mature GCs and slow events in newborn GCs (p < 0.05, ANOVA with Tukey–Kramer multiple comparisons).