Fig 1.
(A) Overview of the semi-cylindrical projection screen with floor projection. (B) The participant, here indicating a VIMS score with the left hand, and providing a continuous vection rating with the right. (C) Visual stimulus to suppress vection, where the ellipse-shaped central part of the visual field (dashed line, present in the figure only) moved opposite to the periphery. (A/B: By Berthold Steinhilber / Max-Planck-Institut für biologische Kybernetik)
Fig 2.
Example of head movement recording, with the head orientation in the upper panel, and Earth-horizontal component of rotational velocity in the lower panel.
Fig 3.
Mean FMS-scores as a function of exposure time for the four conditions.
For display purposes, in this figure the final score (FMS 15) was maintained for the remaining time points in case the trial was aborted prematurely.
Table 1.
Stimulus characteristics, average FMSmax scores, average exposure times, and number of drop-outs per condition.
Standard deviations are shown in brackets.
Fig 4.
Mean OKN SPV gain (A) and vection gain (B) per condition Error bars indicate standard error of mean.
Fig 5.
Example of the continuous vection rating for the four conditions (same participant).
Fig 6.
Individual data included in the regression analysis.
Each panel relates one of the six predictors to FMSnorm. Data is labeled per experimental condition.
Table 2.
Estimates for the fixed effects (regression coefficients) in a random intercept model and in a model also incorporating a random slope for vection gain.
All variables were z-transformed. BIC = Bayesian Information Criterion.
Table 3.
Estimates for the “between participants” regression model.
All variables were z-transformed.