A Demonstration of ‘Broken’ Visual Space
Identifieur interne : 002651 ( Main/Merge ); précédent : 002650; suivant : 002652A Demonstration of ‘Broken’ Visual Space
Auteurs : Ellen Svarverud [Norvège] ; Stuart Gilson [Norvège, Royaume-Uni] ; Andrew Glennerster [Royaume-Uni]Source :
- PLoS ONE [ 1932-6203 ] ; 2012.
Abstract
It has long been assumed that there is a distorted mapping between real and ‘perceived’ space, based on demonstrations of systematic errors in judgements of slant, curvature, direction and separation. Here, we have applied a direct test to the notion of a coherent visual space. In an immersive virtual environment, participants judged the relative distance of two squares displayed in separate intervals. On some trials, the virtual scene expanded by a factor of four between intervals although, in line with recent results, participants did not report any noticeable change in the scene. We found that there was no consistent depth ordering of objects that can explain the distance matches participants made in this environment (e.g. A>B>D yet also A
Url:
DOI: 10.1371/journal.pone.0033782
PubMed: 22479441
PubMed Central: 3315588
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Norway</addr-line></nlm:aff><country xml:lang="fr">Norvège</country><wicri:regionArea>Department of Optometry and Visual Science, Buskerud University College, Kongsberg</wicri:regionArea><wicri:noRegion>Kongsberg</wicri:noRegion></affiliation><affiliation wicri:level="4"><nlm:aff id="aff2"><addr-line>Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford</wicri:regionArea><placeName><settlement type="city">Oxford</settlement><region type="country">Angleterre</region><region type="comté" nuts="2">Oxfordshire</region></placeName><orgName type="university">Université d'Oxford</orgName></affiliation></author><author><name sortKey="Glennerster, Andrew" sort="Glennerster, Andrew" uniqKey="Glennerster A" first="Andrew" last="Glennerster">Andrew Glennerster</name><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>School of Psychology and Clinical Language Sciences, University of Reading, Earley Gate, Reading, United Kingdom</addr-line></nlm:aff><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>School of Psychology and Clinical Language Sciences, University of Reading, Earley Gate, Reading</wicri:regionArea><wicri:noRegion>Reading</wicri:noRegion></affiliation></author></analytic><series><title level="j">PLoS ONE</title><idno type="eISSN">1932-6203</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>It has long been assumed that there is a distorted mapping between real and ‘perceived’ space, based on demonstrations of systematic errors in judgements of slant, curvature, direction and separation. Here, we have applied a direct test to the notion of a coherent visual space. In an immersive virtual environment, participants judged the relative distance of two squares displayed in separate intervals. On some trials, the virtual scene expanded by a factor of four between intervals although, in line with recent results, participants did not report any noticeable change in the scene. 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