Figure 1
From: Environment and body-brain interplay affect inhibition and decision-making
Centrifuge-based design. The resultant gravitato-inertial force (GIF) applied on the subject’s vestibular system is the vectorial sum of the Earth gravity force (EGF) and the centrifugal force. (a–c) The RGI was greater (conditions Canal and Otolith) or equal (condition Control) to EGF. In the condition Canal, semicircular canals were activated with centrifuge acceleration (variation in acceleration: 3°/seconds2). In the condition Otolith, only otoliths were stimulated after two minutes of rotation at constant velocity (225°/seconds), which allowed semicircular canals to return to resting activity levels. (d) Picture of a participant that shows the helmet-mounted display where the stimuli were presented, the key presses for response (one held on each hand), and how the head and body were fixed on the rotating platform.
