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AuthorKreiner, Welf A.dc.contributor.author
Date of accession2016-03-15T09:05:43Zdc.date.accessioned
Available in OPARU since2016-03-15T09:05:43Zdc.date.available
Year of creation2014dc.date.created
AbstractThe Delboeuf illusion is investigated for framing ratios FR between 0.37 and 4.49. Around FR = 1.4, the apparent size of the target exhibits a maximum and then decreases continuously. While the increase is ascribed to assimilation, the following exponential decrease is explained by a loss of the contextual interaction between the circles with increasing framing ratio. For an even larger inducing circle the perceived contrast effect is interpreted as a consequence of size constancy. At the largest framing ratio investigated the target circle appears to be even smaller than it is perceived without any inducing circular line. Each of the three effects is described by an algebraic expression as a function of the framing ratio, i.e., by a linear term, an exponential decay term and by a power function, respectively. The combined expression is fitted to the experimental data. For the size constancy parameter the value n = 0.0584(64) has been obtained.dc.description.abstract
Languagededc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandarddc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v3dc.rights.uri
KeywordAveragingdc.subject
KeywordDelboeuf illusiondc.subject
KeywordSize constancydc.subject
Dewey Decimal GroupDDC 530 / Physicsdc.subject.ddc
LCSHAlgebraic functionsdc.subject.lcsh
LCSHContrastsdc.subject.lcsh
TitleAn algebraic function describing the Delboeuf illusiondc.title
Resource typeWissenschaftlicher Beitragdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-2650dc.identifier.doi
PPN1654252204dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-89466dc.identifier.urn
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
Date of activation2014-03-22T14:45:54Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
DCMI TypeTextuulm.typeDCMI
VTS ID8946uulm.vtsID
CategoryPublikationenuulm.category
Bibliographyuulmuulm.bibliographie


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