Figure 4
From: Gravity-dependent change in the ‘light-from-above’ prior

Theoretical model (Equation 3) showing how the inverse (−Ø) product (x symbol) of utricle (sin(head tilt)) and saccule (cos(head tilt)) signals with a gain of 14.7 are summed with retinal orientation (5.4° * −sin(ø)) with near equal weights (0.52 and 0.48, respectively) to predict change in the change in LPp for roll tilt of the observer. Retinal orientation prediction from13. The amplitude of multiplied otolith signals and weighting relative to retinal orientation are free parameters.