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Conference Paper: Errors in perceived self-motion along a circular path persist in the presence of scene information

TitleErrors in perceived self-motion along a circular path persist in the presence of scene information
Authors
Issue Date2011
PublisherPion Ltd.. The Journal's web site is located at http://i-perception.perceptionweb.com/journal/I/
Citation
The 7th Asia-Pacific Conference on Vision (APCV 2011), Hong Kong, 15-18 July 2011. In i-Perception, 2011, v. 2 n. 4, article no. 273 How to Cite?
AbstractRecent evidence suggests that observers have difficulty perceiving path curvature from optic flow when curvature is not accompanied by simulated view rotation. In this study, we investigated whether scene structure could reduce such biases. Landmarks provide reference objects, and a familiar scene might allow self-motion to be perceived from multiple static views. We tested three scenes: textured ground with no landmarks, with landmarks in a fixed configuration, or with landmarks in randomly varied configuration. In the fixed landmark condition, observers were pre-trained to learn the configuration. Observers viewed 1s displays of simulated self-motion along circular paths, with various curvature, and adjusted a pole to lie on their perceived future path. Two pole distances were tested to assess perceived path curvature. Across all conditions, judgments showed errors consistent with underestimation of path curvature, and a bias toward the center of the screen. The presence of landmarks did not reduce these biases, nor improve precision of judgments. In contrast to some previous studies, we found no benefit from rich scene structure. We argue that the biases observed here are due to use of instantaneous optic flow, which provides insufficient information in these conditions even when a scene has rich structure.
DescriptionOpen Access Journal
亞太視覺會議, APCV 2011
Poster Session - Perception and Action: no. 273
Persistent Identifierhttp://hdl.handle.net/10722/136190
ISSN

 

DC FieldValueLanguage
dc.contributor.authorMa, KYen_US
dc.contributor.authorSaunders, JAen_US
dc.date.accessioned2011-07-27T02:04:24Z-
dc.date.available2011-07-27T02:04:24Z-
dc.date.issued2011en_US
dc.identifier.citationThe 7th Asia-Pacific Conference on Vision (APCV 2011), Hong Kong, 15-18 July 2011. In i-Perception, 2011, v. 2 n. 4, article no. 273en_US
dc.identifier.issn2041-6695-(electronic)-
dc.identifier.urihttp://hdl.handle.net/10722/136190-
dc.descriptionOpen Access Journal-
dc.description亞太視覺會議, APCV 2011-
dc.descriptionPoster Session - Perception and Action: no. 273-
dc.description.abstractRecent evidence suggests that observers have difficulty perceiving path curvature from optic flow when curvature is not accompanied by simulated view rotation. In this study, we investigated whether scene structure could reduce such biases. Landmarks provide reference objects, and a familiar scene might allow self-motion to be perceived from multiple static views. We tested three scenes: textured ground with no landmarks, with landmarks in a fixed configuration, or with landmarks in randomly varied configuration. In the fixed landmark condition, observers were pre-trained to learn the configuration. Observers viewed 1s displays of simulated self-motion along circular paths, with various curvature, and adjusted a pole to lie on their perceived future path. Two pole distances were tested to assess perceived path curvature. Across all conditions, judgments showed errors consistent with underestimation of path curvature, and a bias toward the center of the screen. The presence of landmarks did not reduce these biases, nor improve precision of judgments. In contrast to some previous studies, we found no benefit from rich scene structure. We argue that the biases observed here are due to use of instantaneous optic flow, which provides insufficient information in these conditions even when a scene has rich structure.-
dc.languageengen_US
dc.publisherPion Ltd.. The Journal's web site is located at http://i-perception.perceptionweb.com/journal/I/-
dc.relation.ispartofi-Perceptionen_US
dc.rightsCopyright is retained by the author(s) of this article. This open-access article is distributed under a Creative Commons Licence, which permits noncommercial use, distribution, and reproduction, provided the original author(s) and source are credited and no alterations are made.-
dc.titleErrors in perceived self-motion along a circular path persist in the presence of scene informationen_US
dc.typeConference_Paperen_US
dc.identifier.emailMa, KY: h0609530@hku.hken_US
dc.identifier.emailSaunders, JA: jsaun@hkucc.hku.hk-
dc.identifier.authoritySaunders, JA=rp00638en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1068/ic273-
dc.identifier.hkuros187002en_US
dc.identifier.volume2-
dc.identifier.issue4-
dc.publisher.placeUnited Kingdom-
dc.description.otherThe 7th Asia-Pacific Conference on Vision (APCV 2011), Hong Kong, 15-18 July 2011. In i-Perception, 2011, v. 2 n. 4, article no. 273-

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