Fig. 4. The activity of a silent, afferent fiber innervating a superficial neuromast on the infraorbital lateral line, as monitored during prey movement. (A) The distance (cm) of the prey fish from the recorded neuromast. (B) The full neural waveform from the anterior lateral line nerve that was transmitted via inductive telemetry. Although multiunit activity is visible in the trace, only the fiber with the greatest amplitude of action potential was used for data analysis. The fiber had no spontaneous activity and exhibited maximum firing (10 Hz) when the prey fish was within 1 cm of the neuromast.