Table 1.

Values for spontaneous spiking under different conditions

Condition	Mean ISI (ms)	τ_fast (ms)	%τ_fast	τ_slow (ms)
WT (8)	83 ± 12	31 ± 8	63 ± 10	124 ± 28
cdh23^tc317e (5)	372 ± 59	49 ± 10	80 ± 4	458 ± 116
pcdh15^t288 (4)	619 ± 148	41 ± 20	85 ± 7	791 ± 197
2 mm DHS (7)	391 ± 115	56 ± 19	83 ± 2	432 ± 105
1 mm ZD7288 (4)	884 ± 280	65 ± 8	81 ± 5	429 ± 48
1 mm DK-AH 269 (4)	189 ± 24	28 ± 5	82 ± 4	206 ± 34
2 mm DHS & 1 mm DK-AH 269 (4)	7053 ± 4009	n.a.	n.a.	n.a.
1 mm BAPTA & 1 mm ZD7288 (3)	4340 ± 490	n.a.	n.a.	n.a.

The condition column indicates the experimental condition with the number of individual larvae tested indicated in parentheses (n). The mean ISI time ± SEM was calculated from the total number of spikes in 400 s. The τ_fast, τ_slow, and %τ_fast values are mean ± SEM from the exponential equations fit to each cumulative ISI histogram generated. For all conditions except wild type, the two-phase exponential decay equation was the best fit (p < 0.0001). Note that the two wild-type recordings best fit with single-phase equations are not included in the wild-type condition (mean ISI = 67 and 57 ms; τ = 63 and 61 ms, respectively). Analyses were not applicable (n.a.) for conditions where not enough data were available.