Fig. 3
In vivo stimulation of rat and cat sciatic nerve. Stimulation was delivered through a bipolar hook electrode using a waveform generator controlled by computer. a. The evoked EMG signal was recorded from the medial gastrocnemius in rats and cats, and the evoked CAP was recorded from the tibial nerve in cats. b,c The plots show the evoked EMG (b) and CAP (c) responses using pulses of amplitudes 10–200 μA. The signals were rectified and integrated to construct input-output curves