Figure 5.

Activity of a hindlimb-related RNN during different postural tests. A, Control (test 2F2H). B, Standing on two forelimbs (test 2F). C, Standing on two hindlimbs (test 2H). D, Antiphase tilts of the F and H platforms (test 2F2H/Anti). E, Standing on the right hindlimb (test RH). F, Standing on the left hindlimb (test LH). For each test, the following are shown: (1) the phase histogram of spike activity in the tilt cycle (black line), (2) the first harmonic of Fourier image (gray line), (3) the mean frequency of discharge (white arrow), and (4) the preferred phase (black arrow).