Figure 3.

Lesion in LS and effects on evoked chirping in Apteronotus. Same convention as in Figs. 1 and 2 was used. (A) Frontal sections through ELL. Sections are about 250 μm apart. (B) Frequency–time plot of evoked chirp before (upper trace) and after (lower trace) injection of ibotenic acid. Horizontal bars indicate duration of external stimulus. (C) Quantitative analysis of effects on the duration of chirps. Left pair of boxes, examples taken from same case depicted in A and B; right box pair, average of three fish; asterisks, significantly different (rank sum test, P < 0.0001). (D) Effects on frequency change during evoked chirping. Same convention as in C.