Fig. 6.

Quantitative differences between field potentials generated by short-(filled) and long-latency (open) behaviors evoked at 3–5 d.p.f. (A) Mean delay values for electric field potential signals (left) and escape behaviors (right). Field potential delays were measured as described in the legends to Fig. 2B and Fig. 4B. Behavioral delays were measured as the interval between arrival of the stimulus and the first detectable movement. (B) Mean durations of electric field potential signals (left) and escape behaviors (right). Field potential durations were measured as described in the legends to Fig. 2B and Fig. 4B. Escape behavior durations were measured from the first detectable movement to full flexion. (C) Mean amplitudes of electric field potential signals (left) and maximum changes in head trajectory (right) during escape behaviors. Field potential amplitudes were measured as described in the legends to Fig. 2B and Fig. 4B. Changes in head trajectory were measured as described in the legend to Fig. 1C. Numerical values for all parameters (±s.d.) are provided in Table 1, N=20. ***, P<0.0005 (two-tailed Wilcoxon matched-pairs test). Escape behavior was elicited in 280 out of 350 trials. Trials that failed to evoke escape behavior are not shown. (D) Relationship between the maximal angular velocities of short- and long-latency escapes and the corresponding field potential signals. Each symbol represents the mean of data collected from an individual animal.