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Article: Can observers judge future circular path relative to a target from retinal flow?

TitleCan observers judge future circular path relative to a target from retinal flow?
Authors
KeywordsHeading
Locomotion
Optic flow
Self-motion
Issue Date2011
PublisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/
Citation
Journal Of Vision, 2011, v. 11 n. 7, p. 1-17 How to Cite?
AbstractWe investigated the ability of observers to judge whether they will pass left or right of a visible target from simulated motion along a circular path. Strategies based on optic flow would generally require compensation for pursuit eye movements. J. P. Wann and D. K. Swapp (2000) proposed an alternative strategy that requires only retinal flow. The experiments compared three conditions that provide the same retinal flow but different observer-relative optic flow. In the heading-relative view condition, simulated view direction rotated with change in heading, as naturally occurs when driving a car. In target-relative view condition, simulated view direction rotated to keep the direction of the target constant. In world-relative view condition, the simulated view direction was fixed relative to the environment. If an observer fixates the target, these conditions produce the same retinal flow. The initial heading direction of simulated motion was varied across trials, and responses were used to compute PSEs representing perceptual bias. Judgments were most accurate in the heading-relative condition. In the targetrelative and world-relative view conditions, PSEs indicated large biases consistent with underestimation of path curvature. The large biases suggest that retinal flow is not sufficient to judge future circular path relative to a target. © ARVO.
Persistent Identifierhttp://hdl.handle.net/10722/136302
ISSN
2015 Impact Factor: 2.341
2015 SCImago Journal Rankings: 1.042
ISI Accession Number ID
Funding AgencyGrant Number
Hong Kong Research Grants CouncilGRF HKU-750209H
Funding Information:

This work was supported by a grant from the Hong Kong Research Grants Council, GRF HKU-750209H. We thank Diederick Niehorster and two anonymous reviewers for their helpful comments.

References

 

DC FieldValueLanguage
dc.contributor.authorSaunders, JAen_HK
dc.contributor.authorMa, KYen_HK
dc.date.accessioned2011-07-27T02:12:38Z-
dc.date.available2011-07-27T02:12:38Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Vision, 2011, v. 11 n. 7, p. 1-17en_HK
dc.identifier.issn1534-7362en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136302-
dc.description.abstractWe investigated the ability of observers to judge whether they will pass left or right of a visible target from simulated motion along a circular path. Strategies based on optic flow would generally require compensation for pursuit eye movements. J. P. Wann and D. K. Swapp (2000) proposed an alternative strategy that requires only retinal flow. The experiments compared three conditions that provide the same retinal flow but different observer-relative optic flow. In the heading-relative view condition, simulated view direction rotated with change in heading, as naturally occurs when driving a car. In target-relative view condition, simulated view direction rotated to keep the direction of the target constant. In world-relative view condition, the simulated view direction was fixed relative to the environment. If an observer fixates the target, these conditions produce the same retinal flow. The initial heading direction of simulated motion was varied across trials, and responses were used to compute PSEs representing perceptual bias. Judgments were most accurate in the heading-relative condition. In the targetrelative and world-relative view conditions, PSEs indicated large biases consistent with underestimation of path curvature. The large biases suggest that retinal flow is not sufficient to judge future circular path relative to a target. © ARVO.en_HK
dc.languageengen_US
dc.publisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/en_HK
dc.relation.ispartofJournal of Visionen_HK
dc.subjectHeadingen_HK
dc.subjectLocomotionen_HK
dc.subjectOptic flowen_HK
dc.subjectSelf-motionen_HK
dc.subject.meshEye Movements-
dc.subject.meshMotion Perception - physiology-
dc.subject.meshOptic Flow - physiology-
dc.subject.meshOrientation - physiology-
dc.subject.meshRetina - physiology-
dc.titleCan observers judge future circular path relative to a target from retinal flow?en_HK
dc.typeArticleen_HK
dc.identifier.emailSaunders, JA:jsaun@hkucc.hku.hken_HK
dc.identifier.authoritySaunders, JA=rp00638en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1167/11.7.1en_HK
dc.identifier.pmid21690187-
dc.identifier.scopuseid_2-s2.0-80054105556en_HK
dc.identifier.hkuros186963en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80054105556&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue7en_HK
dc.identifier.spage1en_HK
dc.identifier.epage17en_HK
dc.identifier.eissn1534-7362-
dc.identifier.isiWOS:000292382400016-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridSaunders, JA=7402341514en_HK
dc.identifier.scopusauthoridMa, KY=53463712700en_HK

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