Fig. 7: Direction of simulated motion.
From: Vection underwater illustrates the limitations of neutral buoyancy as a microgravity analog
Red arrows show direction of simulated motion in (a) the virtual reality (i.e. hallway), (b) the sitting upright condition, (c) the lying supine condition. Simulated motion is perceived along the participants’ sagittal axis in both sitting upright and lying supine (i.e. participants’ vision was head-fixed).
