Figure 7.
Predictions of the model in Figure 6A during upright yaw rotation. A, Predicted gain (Ėhor/Ḣyaw) and phase of the horizontal RVOR plotted as a function of frequency. B, Simulated responses to constant velocity rotation. Without the contribution of the output from NI1 (i.e., if d = 0), the dynamics of the RVOR at low frequencies reflect those of semicircular canal afferents (A, B, dashed lines). When the pathway via NI1 is intact (i.e., when d = 1; A, B, solid lines), an extended low-frequency RVOR bandwidth is predicted (A) as illustrated in a lengthened decay of simulated per- and post-rotatory responses to constant velocity rotation (B) (Raphan et al., 1977, 1979). Dotted lines in B illustrate the head velocity input to the model, Ḣyaw.