Fig. 11. Independent movements by the two hind legs. Simultaneous recordings were made from the trochanteral depressor muscles of the left and the right hind legs of the same Aphrodes as Fig. 10. (A) A rapid kick by the right hind leg alone was preceded by a burst of spikes only in the right depressor muscle. Scale bar, 1 mm. (B) The burst of spikes on a faster time scale.