Table 1.

Development of escape onset latency

	Hours postfertilization
	45–59	60–74	75–89	90–104	105–170
Average latency
Intact	6.8 ± 0.9 ms	6.1 ± 1.0 ms	5.3 ± 1.2 ms	6.6 ± 2.3 ms	4.7 ± 2.3 ms
	n = 47, 4 fish	n = 101, 10 fish	n = 160, 13 fish	n = 41, 4 fish	n = 124, 12 fish
OV-lesioned	6.6 ± 0.8 ms	6.4 ± 1.3 ms	7.0 ± 1.1 ms	7.9 ± 1.7 ms	8.9 ± 1.7 ms
	n = 45, 5 fish	n = 47, 7 fish	n = 41, 5 fish	n = 43, 5 fish	n = 48, 11 fish
M-lesioned	7.3 ± 1.0 ms	8.1 ± 0.7 ms	7.5 ± 0.6 ms	8.0 ± 1.1 ms	8.5 ± 1.6 ms
	n = 29, 3 fish	n = 27, 3 fish	n = 33, 3 fish	n = 24, 3 fish	n = 40, 5 fish
Minimum latency
Intact	5.8 ± 1.0 ms	5.1 ± 0.7 ms	4.0 ± 0.8 ms	4.4 ± 0.9 ms	3.0 ± 0.0 ms
OV-lesioned	5.6 ± 0.5 ms	5.6 ± 1.1 ms	6.0 ± 0.7 ms	6.4 ± 0.5 ms	7.8 ± 1.1 ms
M-lesioned	6.3 ± 0.6 ms	7.7 ± 0.6 ms	6.7 ± 0.6 ms	7.0 ± 0.0 ms	7.4 ± 1.1 ms

Average and minimum onset latencies of tail flip responses elicited by a water pulse delivered to the OV of intact, OV-lesioned, or M-lesioned larvae in semifixed preparations, at different developmental stages. Values are reported as mean ± SD.