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...he device), and the average orientation relative to the path (e.g. 0deg for "tangential", 90deg. for inward or outward). We analysed the errors in these measures, compared to the presented values, and normalised to the total perceived amount of yaw: yrelerr.PathRot, relerr.Yaw and relerr.PathRel.Orn Additionally, we calculated measures of overlap (more exactly: average pointwise distance after maximising overlap): Spat for the path, Orn for the orientation; there were combined into FD=sqrt(Spat^2+Orn^2). Earlier analysis had suggested that subjects assume a fixed orientation relative to...