Fig. 6.

Model responses at central and behavioral levels, with and without brief (50 ms) opposing head torques (default parameter set). The responses from the SMF model are concurrent for each of the perturbed or control situations. Modified trajectories (A) and neural activities (C, E–H) due to perturbations are consistent with the literature; note longer gaze shift duration but with preserved accuracy for the perturbed case (A, B, F). The brief perturbation causes a dip in SLBN activity (C) matching the observations (D) of Sylvestre and Cullen (2006) associated with a dip in ipsilateral type I VO (excitatory) cell activity (H) and/or burst on contralateral type II VO (inhibitory). The increase in PVP activity (G) after the perturbation is a prediction of the model. See glossary for definitions.