Figure 3.

The CV of an impaled Pn neuron’s spike timing can be less than 3 (2.8) times the CV of the EOD in simultaneous recordings. (A) The histogram of a Pn neuron’s inter-spike intervals is Gaussian distributed with measured CV = 6.1 × 10⁻⁴ (SD = 0.84 μs). (B) The histogram of EOD cycle periods likewise fits a Gaussian distribution, with measured CV = 2.2 × 10⁻⁴ (SD = 0.30 μs). With rare exceptions, a Pn neuron CV was larger than the EOD CV.