Figure 1. Short-latency, phasic SPL motor unit responses evoked by (A) Me5 and (B) 5Gn electrical stimulation (1.5 times the response threshold). (A) Me5 electrical stimulation at 20 µA evoked ipsilateral (top) SPL spikes with 1.3-ms latency, but failed to evoke contralateral (bottom) spike responses. (B) Ipsi- and contralateral SPL discharges with 2.2-ms latency, evoked by 5Gn electrical stimulation at 50 µA. Arrows indicate stimulus artifacts.

Return to article