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AuthorKreiner, Welf A.dc.contributor.author
Date of accession2017-08-30T11:10:36Zdc.date.accessioned
Available in OPARU since2017-08-30T11:10:36Zdc.date.available
Year of creation2017-08-25dc.date.created
Date of first publication2017-08-30dc.date.issued
AbstractSince the Zöllner illusion, several more orientation illusions have been published. Two effects are discussed here: A rotation effect on lines or stroke patterns at small angles to one of the two principal axes of alignment (vertical or horizontal) and another rotation effect on herringbone like structures. In the small-angle-to-axis-illusion (SMOX) a single line or a pattern of parallel lines appears to be slightly rotated towards the nearest axis. This effect is attributed to the uneven distribution of orientation cells in the visual cortex, as well as to an averaging process of the signals they produce. Vertical or horizontal target lines seen above such a pattern are rotated, too. This apparent interaction is attributed to crosstalk between neural pathways processing the visual information. Beside a general example of a herringbone type illusion, as a special case the original version of the Zöllner illusion is discussed, where the strokes of each two mirrorlike patterns form an angle of 90 degrees. The perceived tilt of the parallel target lines is attributed to a size constancy effect. However, herringbone type illusions can be enhanced by the small angle rotation effect. The Hering illusion is attributed to small angle rotation as well as to a size constancy effect. Both illusions are investigated with respect to their dependence on the overall orientation of the stimulus.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandarddc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v3dc.rights.uri
KeywordApparent tiltdc.subject
KeywordGeometrical-optical Illusionsdc.subject
KeywordHering illusiondc.subject
KeywordHerringbone structuredc.subject
KeywordIntersect angledc.subject
KeywordOrientation illusionsdc.subject
KeywordSize constancydc.subject
KeywordZöllner Illusiondc.subject
Dewey Decimal GroupDDC 530 / Physicsdc.subject.ddc
LCSHCrosstalkdc.subject.lcsh
LCSHOptical illusionsdc.subject.lcsh
LCSHVisual cortexdc.subject.lcsh
TitleOrientation illusions and crosstalkdc.title
Resource typeWissenschaftlicher Beitragdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-4499dc.identifier.doi
PPN1703314891dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-oparu-4538-3dc.identifier.urn
GNDGeometrisch-optische Täuschungdc.subject.gnd
GNDZöllner-Täuschungdc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
DCMI TypeTextuulm.typeDCMI
TypeErstveröffentlichunguulm.veroeffentlichung
CategoryPublikationenuulm.category
Bibliographyuulmuulm.bibliographie


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