Objective To explore the intracellular potential changes of Mauthner cells(M-cells)evoked by spinal cord stimulation in the Crucian carp after intramuscular injection of strychnine.Methods\ Microelectrode recording technique was used to explore the electrophysiological properties of M-cells.Results\ Both the amplitude and the average duration of the postsynaptic potential(PSP) in M-cells were increased,and two or more action potentials were sometimes superimposed.Conclusion\ The results suggest that there a...