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Article: Influence of optic-flow information beyond the velocity field on the active control of heading

TitleInfluence of optic-flow information beyond the velocity field on the active control of heading
Authors
KeywordsHeading
Manual control
Motion perception
Optic flow
Perception and action
Visuomotor control
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. 4, p. 1-16 How to Cite?
AbstractWe examined both the sufficiency of the optic-flow velocity field and the influence of optic-flow information beyond the velocity field on the active control of heading. The display simulated a vehicle traveling on a circular path through a randomdot 3D cloud under a static or a dynamic scene in which dots were periodically redrawn to remove information beyond the velocity field. Participants used a joystick, under either velocity and acceleration control dynamics, to steer and align the vehicle orientation with their perceived heading while experiencing random perturbations to the vehicle orientation. Frequency-response (Bode) plots show reasonably good performance under both display conditions with a decrease in gain and an increase in phase lag for the dynamic scene for both control dynamics. The performance data were fit by a Crossover Model to identify reaction time and lead time constant to determine how much participants anticipated future heading to generate lead control. Reaction time was longer and lead time constant was smaller for the dynamic than the static scene for both control dynamics. We conclude that the velocity field alone is sufficient to support closed-loop heading control, but optic-flow information beyond the velocity field improves visuomotor performance in self-motion control. © ARVO.
Persistent Identifierhttp://hdl.handle.net/10722/138107
ISSN
2015 Impact Factor: 2.341
2015 SCImago Journal Rankings: 1.042
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of Hong KongHKU 7478/08H
Funding Information:

This study was supported by a grant from the Research Grants Council of Hong Kong (HKU 7478/08H) to L. Li. We thank Diederick Niehorster and Joseph Cheng for their assistance in programming and data analysis and two anonymous reviewers for their helpful comments on a previous draft of the article.

References

 

DC FieldValueLanguage
dc.contributor.authorLi, Len_HK
dc.contributor.authorStone, LSen_HK
dc.contributor.authorChen, Jen_HK
dc.date.accessioned2011-08-26T14:40:26Z-
dc.date.available2011-08-26T14:40:26Z-
dc.date.issued2011en_HK
dc.identifier.citationJournal Of Vision, 2011, v. 11 n. 4, p. 1-16en_HK
dc.identifier.issn1534-7362en_HK
dc.identifier.urihttp://hdl.handle.net/10722/138107-
dc.description.abstractWe examined both the sufficiency of the optic-flow velocity field and the influence of optic-flow information beyond the velocity field on the active control of heading. The display simulated a vehicle traveling on a circular path through a randomdot 3D cloud under a static or a dynamic scene in which dots were periodically redrawn to remove information beyond the velocity field. Participants used a joystick, under either velocity and acceleration control dynamics, to steer and align the vehicle orientation with their perceived heading while experiencing random perturbations to the vehicle orientation. Frequency-response (Bode) plots show reasonably good performance under both display conditions with a decrease in gain and an increase in phase lag for the dynamic scene for both control dynamics. The performance data were fit by a Crossover Model to identify reaction time and lead time constant to determine how much participants anticipated future heading to generate lead control. Reaction time was longer and lead time constant was smaller for the dynamic than the static scene for both control dynamics. We conclude that the velocity field alone is sufficient to support closed-loop heading control, but optic-flow information beyond the velocity field improves visuomotor performance in self-motion control. © 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.subjectManual controlen_HK
dc.subjectMotion perceptionen_HK
dc.subjectOptic flowen_HK
dc.subjectPerception and actionen_HK
dc.subjectVisuomotor controlen_HK
dc.subject.meshEye Movements - physiology-
dc.subject.meshMotion Perception - physiology-
dc.subject.meshOptic Flow - physiology-
dc.subject.meshOrientation - physiology-
dc.subject.meshPhotic Stimulation-
dc.titleInfluence of optic-flow information beyond the velocity field on the active control of headingen_HK
dc.typeArticleen_HK
dc.identifier.emailLi, L:lili@hku.hken_HK
dc.identifier.authorityLi, L=rp00636en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1167/11.4.1en_HK
dc.identifier.doi10.1167/11.4.9en_HK
dc.identifier.pmid21493706en_HK
dc.identifier.scopuseid_2-s2.0-80051619128en_HK
dc.identifier.hkuros191307en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80054096995&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.issue4en_HK
dc.identifier.spage1en_HK
dc.identifier.epage16en_HK
dc.identifier.eissn1534-7362-
dc.identifier.isiWOS:000290091000009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, L=26643188000en_HK
dc.identifier.scopusauthoridStone, LS=7201963856en_HK
dc.identifier.scopusauthoridChen, J=53463233800en_HK

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