Tilts of rotation planes of experimental and reconstructed angular eye velocity.

<p>Average tilts (± SD) of rotation planes of experimental angular eye velocity, obtained from sinusoidal fits of slow phase angular eye velocity, follow approximately the half-angle rule. In contrast, average tilts (±SD) of rotation planes of reconstructed angular eye velocity based on <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095234#pone.0095234.e106" target="_blank">equation 3</a> accorded with the half-angle rule in terms of estimated average gaze eccentricity. For a cycle per cycle comparison see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095234#pone-0095234-g008" target="_blank">Fig. 8</a>.