Fig. 2. The mean normalized neural firing rates of (A) silent (N=4) and
(B) spontaneously active afferent fibers (N=5) of the anterior
lateral line are plotted versus the distance of the innervated
neuromasts to the prey. All firing rates were normalized according to the
maximum firing rate recorded during each trial. Neural activity was analyzed
only when the prey fish was at the same location for greater than 500 ms. All
distances were measured from the insertion point of the nearside prey pectoral
fin to the neuromast that was innervated by the recording. Asterisks indicate
significantly different means from controls (ANOVA). The broken horizontal
line in B represents the mean normalized spontaneous firing rate from
spontaneously active fibers.