Fig. 5.

Simulation responses (dashed lines) and experimental responses (solid lines; equal to Fig. 3) of the COM to tilt stimulus FRF for the three visual conditions (columns) in terms of gain (top row) and phase (bottom row) over tilt frequency. Each plot gives the stimulus evoked sway results for the four tilt stimulus amplitudes. The simulation results were obtained using the model shown in Fig. 1 and the corresponding set of parameters for each of the three visual conditions (Table 1).