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Article: Humans can perceive heading without visual path information

TitleHumans can perceive heading without visual path information
Authors
KeywordsCurvilinear motion
Eye movements
Navigation
Temporal integration
Issue Date2006
PublisherAssociation for Research in Vision and Ophthalmology. The Journal's web site is located at http://wwwjournalofvisionorg/
Citation
Journal Of Vision, 2006, v. 6 n. 9, p. 874-881, article no. 2 How to Cite?
AbstractIt has previously been reported that humans can determine their direction of 3D translation (heading) from the 2D velocity field of retinal motion experienced during self-motion through a rigid environment, as is done by current computational models of visual heading estimation from optic flow. However, these claims were supported by studies that used stimuli that contained low rotational flow rates and/or additional visual cues beyond the velocity field or a task in which observers were asked to indicate their future trajectory of self-motion (path). Thus, previous conclusions about heading estimation have been confounded by the presence of other visual factors beyond the velocity field, by the use of a path-estimation task, or both. In particular, path estimation involves an exocentric computation with respect to an environmental reference, whereas heading estimation is an egocentric computation with respect to one's line of sight. Here, we use a heading-adjustment task to demonstrate that humans can precisely estimate their heading from the velocity field, independent of visual information about path, displacement, layout, or acceleration, with accuracy robust to rotation rates at least as high as 20 deg/s. Our findings show that instantaneous velocity-field information about heading is directly available for the visual control of locomotion and steering. © ARVO.
Persistent Identifierhttp://hdl.handle.net/10722/89410
ISSN
2015 Impact Factor: 2.341
2015 SCImago Journal Rankings: 1.042
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Len_HK
dc.contributor.authorSweet, BTen_HK
dc.contributor.authorStone, LSen_HK
dc.date.accessioned2010-09-06T09:56:40Z-
dc.date.available2010-09-06T09:56:40Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Vision, 2006, v. 6 n. 9, p. 874-881, article no. 2en_HK
dc.identifier.issn1534-7362en_HK
dc.identifier.urihttp://hdl.handle.net/10722/89410-
dc.description.abstractIt has previously been reported that humans can determine their direction of 3D translation (heading) from the 2D velocity field of retinal motion experienced during self-motion through a rigid environment, as is done by current computational models of visual heading estimation from optic flow. However, these claims were supported by studies that used stimuli that contained low rotational flow rates and/or additional visual cues beyond the velocity field or a task in which observers were asked to indicate their future trajectory of self-motion (path). Thus, previous conclusions about heading estimation have been confounded by the presence of other visual factors beyond the velocity field, by the use of a path-estimation task, or both. In particular, path estimation involves an exocentric computation with respect to an environmental reference, whereas heading estimation is an egocentric computation with respect to one's line of sight. Here, we use a heading-adjustment task to demonstrate that humans can precisely estimate their heading from the velocity field, independent of visual information about path, displacement, layout, or acceleration, with accuracy robust to rotation rates at least as high as 20 deg/s. Our findings show that instantaneous velocity-field information about heading is directly available for the visual control of locomotion and steering. © ARVO.en_HK
dc.languageengen_HK
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.subjectCurvilinear motionen_HK
dc.subjectEye movementsen_HK
dc.subjectNavigationen_HK
dc.subjectTemporal integrationen_HK
dc.titleHumans can perceive heading without visual path informationen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1534-7362&volume=6&spage=874&epage=881&date=2006&atitle=Humans+Can+Perceive+Heading+Without+Visual+Path+Informationen_HK
dc.identifier.emailLi, L:lili@hku.hken_HK
dc.identifier.authorityLi, L=rp00636en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1167/6.9.2en_HK
dc.identifier.pmid17083281en_HK
dc.identifier.scopuseid_2-s2.0-33747053900en_HK
dc.identifier.hkuros124383en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33747053900&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume6en_HK
dc.identifier.issue9en_HK
dc.identifier.spage874-
dc.identifier.epage881, article no. 2-
dc.identifier.isiWOS:000243594000002-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, L=26643188000en_HK
dc.identifier.scopusauthoridSweet, BT=7003591605en_HK
dc.identifier.scopusauthoridStone, LS=7201963856en_HK
dc.identifier.citeulike2795402-

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