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Conference Paper: Humans use both form and motion information for heading perception

TitleHumans use both form and motion information for heading perception
Authors
Issue Date2010
PublisherShikaku Kenkyukai. The Journal's web site is located at http://wwwsoc.nii.ac.jp/vsj2/VISION/
Citation
The 6th Asia-Pacific Conference on Vision (APCV 2010), Taipei, Taiwan, 23-26 July 2010. In Vision, 2010, v. 22 suppl., p. 58, abstract no. 31.02 How to Cite?
AbstractIt has long been known that humans use the focus of expansion (FOE) in a radial optic flow pattern to perceive their instantaneous direction of self-motion (heading). Here we report that motion-streak-like form information is also used for heading perception. We presented observers with an integrated form and motion display in which the dot pairs of a radial Glass patterns were oriented toward one direction on the screen (the form FOE) while moving in a different direction in depth (the motion FOE). Heading judgments were strongly biased towards the form FOE. We then manipulated the global form strength in the integrated display by randomly orienting certain dot pairs in the radial Glass pattern. As the global form strength in the radial Glass pattern decreased, so did the heading bias towards the form FOE. Lastly, we examined how the local effect of each dot-pair orientation on its perceived motion direction shifted heading estimation. We found that the visual system functioned like a maximum-likelihood integrator in combining the global and local interactions between form and motion signals for heading perception. The findings support the claim that humans make optimal use of both form and motion information for heading perception.
DescriptionOpen Access Journal
Talk Session:Motion II: 31.02
Persistent Identifierhttp://hdl.handle.net/10722/129928
ISSN

 

DC FieldValueLanguage
dc.contributor.authorLi, Len_US
dc.contributor.authorNiehorster, Den_US
dc.contributor.authorCheng, Jen_US
dc.date.accessioned2010-12-23T08:44:31Z-
dc.date.available2010-12-23T08:44:31Z-
dc.date.issued2010en_US
dc.identifier.citationThe 6th Asia-Pacific Conference on Vision (APCV 2010), Taipei, Taiwan, 23-26 July 2010. In Vision, 2010, v. 22 suppl., p. 58, abstract no. 31.02en_US
dc.identifier.issn0917-1142-
dc.identifier.urihttp://hdl.handle.net/10722/129928-
dc.descriptionOpen Access Journal-
dc.descriptionTalk Session:Motion II: 31.02-
dc.description.abstractIt has long been known that humans use the focus of expansion (FOE) in a radial optic flow pattern to perceive their instantaneous direction of self-motion (heading). Here we report that motion-streak-like form information is also used for heading perception. We presented observers with an integrated form and motion display in which the dot pairs of a radial Glass patterns were oriented toward one direction on the screen (the form FOE) while moving in a different direction in depth (the motion FOE). Heading judgments were strongly biased towards the form FOE. We then manipulated the global form strength in the integrated display by randomly orienting certain dot pairs in the radial Glass pattern. As the global form strength in the radial Glass pattern decreased, so did the heading bias towards the form FOE. Lastly, we examined how the local effect of each dot-pair orientation on its perceived motion direction shifted heading estimation. We found that the visual system functioned like a maximum-likelihood integrator in combining the global and local interactions between form and motion signals for heading perception. The findings support the claim that humans make optimal use of both form and motion information for heading perception.-
dc.languageengen_US
dc.publisherShikaku Kenkyukai. The Journal's web site is located at http://wwwsoc.nii.ac.jp/vsj2/VISION/-
dc.relation.ispartofVision-
dc.titleHumans use both form and motion information for heading perceptionen_US
dc.typeConference_Paperen_US
dc.identifier.emailLi, L: lili@hku.hken_US
dc.identifier.emailNiehorster, D: dcnieho@hku.hken_US
dc.identifier.emailCheng, J: josephck@gmail.comen_US
dc.identifier.authorityLi, L=rp00636en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros178378en_US
dc.identifier.volume22-
dc.identifier.issuesuppl.-
dc.identifier.spage58-
dc.identifier.epage58-
dc.publisher.placeJapan-
dc.description.otherThe 6th Asia-Pacific Conference on Vision (APCV 2010), Taipei, Taiwan, 23-26 July 2010. In Vision, 2010, v. 22 suppl., p. 58, abstract no. 31.02-

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