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{ "pk": 25900, "title": "Body-centric and world-centric components of the large-scale horizontal-vertical\nillusion", "subtitle": null, "abstract": "In the classic horizontal vertical illusion (HVI), vertical lines appear 5-6% longer than horizontal lines. However,\nin outdoor scenes vertical poles of several meters appear as much as 25% longer than frontal ground extents. This large-scale\nHVI is consistent with angular scale expansion theory (Durgin & Li, 2011). It is known that the classic HVI is yoked to\nthe reference frame of the eye itself, such that the illusion reverses when the observer is on his or her side. In a series of\nexperiments conducted both in real outdoor spaces and in immersive virtual environments we examined how the large-scale\nHVI was affected by reorienting the observer, and found that the large scale HVI was reduced, but not reversed. The amount of\nreduction was quantitatively consistent with a retinotopic contribution of the classical HVI (6%). Most of the large-scale HVI\nis world-centric.", "language": "eng", "license": { "name": "", "short_name": "", "text": null, "url": "" }, "keywords": [], "section": "Member Abstracts", "is_remote": true, "remote_url": "https://escholarship.org/uc/item/8bh7s3cc", "frozenauthors": [ { "first_name": "Frank", "middle_name": "", "last_name": "Durgin", "name_suffix": "", "institution": "Swarthmore College", "department": "" }, { "first_name": "Zhi", "middle_name": "", "last_name": "Li", "name_suffix": "", "institution": "Swarthmore College", "department": "" }, { "first_name": "Brennan", "middle_name": "", "last_name": "Klein", "name_suffix": "", "institution": "Swarthmore College", "department": "" } ], "date_submitted": null, "date_accepted": null, "date_published": "2015-01-01T10:00:00-08:00", "render_galley": null, "galleys": [ { "label": "PDF", "type": "pdf", "path": "https://journalpub.escholarship.org/cognitivesciencesociety/article/25900/galley/15524/download/" } ] }