Figure 3
From: Excitability changes in the sciatic nerve and triceps surae muscle after spinal cord injury in mice
Sciatic nerve compound action potentials (nCAP) from injured and control animals (averages for both limbs). A: an overlay of two nCAPs from animal with SCI (red) and control (black). Note that nCAP from SCI has shorter latency than control. Filled triangle indicates stimulus artifact. B: stimulus-response curves show that sciatic nerves responses were of low threshold and larger amplitude in SCI animals (open circles), compared to controls (filled circles). The non-linear relationship between stimulus intensity and nCAP is represented by polynomial curve fit. Note that the fit for SCI (---) is shifted to the left compared to controls (--) suggesting an increase in excitability. C: response:stimulus ratio was calculated for all submaximal nCAP (*p < 0.05). D: nCAP latency measured from the onset of stimulus artifact to