<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Perception and reconstruction of two-dimensional, simulated ego-motion trajectories from optic flow."^^ . "A veridical percept of ego-motion is normally derived from a combination of visual, vestibular, and proprioceptive signals. In a previous study,\nblindfolded subjects could accurately perceive passively travelled straight or curved trajectories provided that the orientation of the head\nremained constant along the trajectory. When they were turned (whole-body, head-fixed) relative to the trajectory, errors occurred. We ask here\nwhether vision allows for better path perception in similar tasks, to correct or complement vestibular perception. Seated, stationary subjects wore\na head mounted display showing optic flow stimuli which simulated linear or curvilinear 2D trajectories over a horizontal ground plane. The\nobserver's orientation was either fixed in space, fixed relative to the path, or changed relative to both. After presentation, subjects reproduced the\nperceived movement with a model vehicle, of which position and orientation were recorded. They tended to correctly perceive ego-rotation\n(yaw), but they perceived orientation as fixed relative to trajectory or (unlike in the vestibular study) to space. This caused trajectory\nmisperception when body rotation was wrongly attributed to a rotation of the path. Visual perception was very similar to vestibular perception."^^ . "2000" . . "40" . "21" . . "Vision Research"^^ . . . . . . . . . . . . . . "M."^^ . "Lappe"^^ . "M. Lappe"^^ . . "I."^^ . "Israël"^^ . "I. Israël"^^ . . "R.J.V."^^ . "Bertin"^^ . "R.J.V. Bertin"^^ . . . . . . "Perception and reconstruction of two-dimensional, simulated ego-motion trajectories from optic flow. (PDF)"^^ . . . . . . "VR-2000-40-21-P2951-RE.PDF"^^ . . "HTML Summary of #2120 \n\nPerception and reconstruction of two-dimensional, simulated ego-motion trajectories from optic flow.\n\n" . "text/html" . . . "Psychophysics" . .