Compound action potential amplitude and conduction velocity as a function of temperature in carp nervus lateralis

This study shows the relationship between nerve fiber conduction velocity of compound action potentials produced by bipolar electrical stimulation were recorded from the isolated carp nervus lateralis by means of an electrode array consisting of 16 0.5 mm diameter platinum wire electrodes mounted in a nerve chamber. The recordings were repeated at temperatures ranging from 12.0 to 32.5 degrees C. Both the amplitude and conduction velocity of the nerve response peaked at about 28.0 degrees C. First-order mathematical approximations of conduction velocity and response waveform as a function of temperature were developed based on these data. The nerve response depending on temperature is distinguished by microscopic photography.