Fig. 1
From: The effect of long-term exposure to microgravity on the perception of upright
The SVV for astronauts (top row) and control participants (bottom row) for BDC1 (before flight), BDC2 and BDC3 (after flight). 0° corresponds to the top of the head (red dashed lines), negative values indicate tilt to the left. Means and standard errors across participants are shown for the SVV measured in the presence of four visual backgrounds: upright (black lines and symbols), tilted to right (red lines and symbols), tilted to left (green lines and symbols), and gray (purple lines and symbols). Inserts show the direction of the visual cues relative to the body. The histograms show variances in deg2 for the upright SVV with (black bars) and without (gray bars) visual cues to upright. Asterisks indicate that variances for BDC1 were significantly lower than for BDC2 when only body and gravity cues contributed
