Figure 7.

Schematic depicting the neural low-pass filtering observed in the monkey vestibulocollic reflex and the potential neural substrates responsible. Sensitivities from each monkey (gray lines in the top plot, n = 3) were normalized to the mean sensitivity across all frequencies. Error bars indicate 1 SEM. The proposed filtering mechanisms limit both the increasing sensitivity of vestibular afferents at high frequencies and the tendency for vestibular afferents (regular: blue; irregular: red) to phase-lock at frequencies above the resting firing rate. Vestibular afferent dynamics during the stochastic stimulus are plotted together with transfer functions (dashed lines) obtained from Kwan et al. (2019).