Fig 14. Eye and head contribution to gaze parameter distribution.

Left panels: the azimuth eye (i.e. $\Delta E_{\vartheta }^n$black bars) and head (i.e. $\Delta H_{\vartheta }^n$white bars) contributions to gaze are shown. For each subject data are averaged across the flight duration conditions (mean ± SE) and they are illustrated separately for the two different arrival heights conditions (top row: Z₂, bottom row: Z₁). Right panels: the same is illustrated relatively to the elevation coordinates (i.e. $\Delta E_{\varphi }^n$and$\Delta H_{\varphi }^n$).