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Article: When motion appears stopped: Stereo motion standstill

TitleWhen motion appears stopped: Stereo motion standstill
Authors
Issue Date2006
PublisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.org
Citation
Proceedings Of The National Academy Of Sciences Of The United States Of America, 2006, v. 103 n. 40, p. 14953-14958 How to Cite?
AbstractMotion standstill is different from the usual perceptual experiences associated with objects in motion. In motion standstill, a pattern that is moving quite rapidly is perceived as being motionless, and yet its details are not blurred but clearly visible. We revisited motion standstill in dynamic random-dot stereograms similar to those first used by Julesz and Payne [Julesz B, Payne R (1968) Vision Res 8:433-444]. Three improvements were made to their paradigm to avoid possible confounds: The temporal frequency of the motion stimuli was manipulated independently from that of individual stereo gratings so that the failure of motion perception is not due to inability to compute stereo. The motion of the stereo gratings was continuous across the visual field so that the perceived pattern in motion standstill was not a simple average of a back-and-forth display wobble over time. Observers discriminated three spatial frequencies to demonstrate pattern recognition. Three objective psychophysical methods, instead of merely self-report, were used to objectively demonstrate motion standstill. Our results confirm that motion standstill occurs in dynamic random-dot stereogram motion displays at 4-6 Hz. Motion standstill occurs when the stimulus spatiotemporal frequency combination exceeds that of the salience-based third-order motion system in a spatiotemporal frequency range in which the shape and depth systems still function. The ability of shape systems to extract a representative image from a series of moving samples is a significant component of a biological system's ability to derive a stable perceptual world from a constantly changing visual environment. © 2006 by The National Academy of Sciences of the USA.
Persistent Identifierhttp://hdl.handle.net/10722/169013
ISSN
2015 Impact Factor: 9.423
2015 SCImago Journal Rankings: 6.883
PubMed Central ID
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTseng, CHen_US
dc.contributor.authorGobell, JLen_US
dc.contributor.authorLu, ZLen_US
dc.contributor.authorSperling, Gen_US
dc.date.accessioned2012-10-08T03:40:45Z-
dc.date.available2012-10-08T03:40:45Z-
dc.date.issued2006en_US
dc.identifier.citationProceedings Of The National Academy Of Sciences Of The United States Of America, 2006, v. 103 n. 40, p. 14953-14958en_US
dc.identifier.issn0027-8424en_US
dc.identifier.urihttp://hdl.handle.net/10722/169013-
dc.description.abstractMotion standstill is different from the usual perceptual experiences associated with objects in motion. In motion standstill, a pattern that is moving quite rapidly is perceived as being motionless, and yet its details are not blurred but clearly visible. We revisited motion standstill in dynamic random-dot stereograms similar to those first used by Julesz and Payne [Julesz B, Payne R (1968) Vision Res 8:433-444]. Three improvements were made to their paradigm to avoid possible confounds: The temporal frequency of the motion stimuli was manipulated independently from that of individual stereo gratings so that the failure of motion perception is not due to inability to compute stereo. The motion of the stereo gratings was continuous across the visual field so that the perceived pattern in motion standstill was not a simple average of a back-and-forth display wobble over time. Observers discriminated three spatial frequencies to demonstrate pattern recognition. Three objective psychophysical methods, instead of merely self-report, were used to objectively demonstrate motion standstill. Our results confirm that motion standstill occurs in dynamic random-dot stereogram motion displays at 4-6 Hz. Motion standstill occurs when the stimulus spatiotemporal frequency combination exceeds that of the salience-based third-order motion system in a spatiotemporal frequency range in which the shape and depth systems still function. The ability of shape systems to extract a representative image from a series of moving samples is a significant component of a biological system's ability to derive a stable perceptual world from a constantly changing visual environment. © 2006 by The National Academy of Sciences of the USA.en_US
dc.languageengen_US
dc.publisherNational Academy of Sciences. The Journal's web site is located at http://www.pnas.orgen_US
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen_US
dc.subject.meshAdulten_US
dc.subject.meshGeneralization, Stimulusen_US
dc.subject.meshHumansen_US
dc.subject.meshMotionen_US
dc.subject.meshMotion Perception - Physiologyen_US
dc.subject.meshPattern Recognition, Visualen_US
dc.subject.meshPhotic Stimulationen_US
dc.titleWhen motion appears stopped: Stereo motion standstillen_US
dc.typeArticleen_US
dc.identifier.emailTseng, CH:tseng@hku.hken_US
dc.identifier.authorityTseng, CH=rp00640en_US
dc.description.naturelink_to_OA_fulltexten_US
dc.identifier.doi10.1073/pnas.0606758103en_US
dc.identifier.pmid17003116-
dc.identifier.pmcidPMC1595457-
dc.identifier.scopuseid_2-s2.0-33749528338en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33749528338&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume103en_US
dc.identifier.issue40en_US
dc.identifier.spage14953en_US
dc.identifier.epage14958en_US
dc.identifier.eissn1091-6490-
dc.identifier.isiWOS:000241069300056-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridTseng, CH=7402541752en_US
dc.identifier.scopusauthoridGobell, JL=6602576418en_US
dc.identifier.scopusauthoridLu, ZL=7404769411en_US
dc.identifier.scopusauthoridSperling, G=7006467228en_US
dc.identifier.citeulike889501-

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