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Article: View rotation is used to perceive path curvature from optic flow.

TitleView rotation is used to perceive path curvature from optic flow.
Authors
Issue Date2010
PublisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/
Citation
Journal Of Vision, 2010, v. 10 n. 13, p. 25 How to Cite?
AbstractIn many natural situations like driving a car, path curvature is accompanied by observer rotation. The experiments reported here test whether such view rotation is necessary to perceive path curvature from optic flow. Displays simulated travel on a circular path along a random dot ground plane, with speeds of 4 m/s and curvature of ±2°/s. In the Rotating View condition, the view direction rotated with heading, as in previous studies. In the Non-rotating View condition, displays simulated travel along the same circular paths but without change in view direction. In Experiment 1, observers indicated positions on their perceived future path at various distances. Judgments were consistent with curved paths in the Rotating View condition, while in the Non-rotating View condition, judgments were consistent with straight paths. In Experiment 2, observers reported whether the simulated path was straight, curved leftward, or curved rightward. Judgments were accurate in the Rotating View condition, while in the Non-rotating View condition, curved paths were often reported to be straight, and observers did not reliably distinguish the sign of curvature. In both experiments, observers had difficulty perceiving path curvature from optic flow when it was not accompanied by view rotation.
Persistent Identifierhttp://hdl.handle.net/10722/169088
ISSN
2015 Impact Factor: 2.341
2015 SCImago Journal Rankings: 1.042
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSaunders, JAen_US
dc.date.accessioned2012-10-08T03:41:38Z-
dc.date.available2012-10-08T03:41:38Z-
dc.date.issued2010en_US
dc.identifier.citationJournal Of Vision, 2010, v. 10 n. 13, p. 25en_US
dc.identifier.issn1534-7362en_US
dc.identifier.urihttp://hdl.handle.net/10722/169088-
dc.description.abstractIn many natural situations like driving a car, path curvature is accompanied by observer rotation. The experiments reported here test whether such view rotation is necessary to perceive path curvature from optic flow. Displays simulated travel on a circular path along a random dot ground plane, with speeds of 4 m/s and curvature of ±2°/s. In the Rotating View condition, the view direction rotated with heading, as in previous studies. In the Non-rotating View condition, displays simulated travel along the same circular paths but without change in view direction. In Experiment 1, observers indicated positions on their perceived future path at various distances. Judgments were consistent with curved paths in the Rotating View condition, while in the Non-rotating View condition, judgments were consistent with straight paths. In Experiment 2, observers reported whether the simulated path was straight, curved leftward, or curved rightward. Judgments were accurate in the Rotating View condition, while in the Non-rotating View condition, curved paths were often reported to be straight, and observers did not reliably distinguish the sign of curvature. In both experiments, observers had difficulty perceiving path curvature from optic flow when it was not accompanied by view rotation.en_US
dc.languageengen_US
dc.publisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/en_US
dc.relation.ispartofJournal of visionen_US
dc.subject.meshForm Perception - Physiologyen_US
dc.subject.meshHumansen_US
dc.subject.meshIllusions - Physiologyen_US
dc.subject.meshLocomotionen_US
dc.subject.meshMotion Perception - Physiologyen_US
dc.subject.meshOrientation - Physiologyen_US
dc.subject.meshPhotic Stimulation - Methodsen_US
dc.subject.meshRotationen_US
dc.titleView rotation is used to perceive path curvature from optic flow.en_US
dc.typeArticleen_US
dc.identifier.emailSaunders, JA:jsaun@hkucc.hku.hken_US
dc.identifier.authoritySaunders, JA=rp00638en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1167/10.13.25-
dc.identifier.pmid21149308-
dc.identifier.scopuseid_2-s2.0-79957865555en_US
dc.identifier.hkuros183753-
dc.identifier.volume10en_US
dc.identifier.issue13en_US
dc.identifier.spage25en_US
dc.identifier.isiWOS:000287727600018-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSaunders, JA=7402341514en_US

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