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- Peripheral_drift_illusion abstract "The peripheral drift illusion (PDI) refers to a motion illusion generated by the presentation of a sawtooth luminance grating in the visual periphery. This illusion was first described by Faubert and Herbert (1999), although a similar effect called the "escalator illusion" was reported by Fraser and Wilcox (1979). A variant of the PDI was created by Kitaoka Akiyoshi and Ashida (2003) who took the continuous sawtooth luminance change, and reversed the intermediate greys. Kitaoka has created numerous variants of the PDI, and one called "rotating snakes" has become very popular. The latter demonstration has kindled great interest in the PDI. The illusion is easily seen when fixating off to the side, and then blinking as fast as possible. Most observers see the illusion easily when reading text (such as this article) with the illusion figure in the periphery. Motion is consistently perceived in a dark-to-light direction, so the two circles to the right should spin in opposite directions.Two papers have been published examining the neural mechanisms involved in seeing the PDI (Backus & Oruç, 2005; Conway et al., 2005). Faubert and Herbert (1999) suggested the illusion was based on temporal differences in luminance processing producing a signal that tricks the motion system. Both of the articles from 2005 are broadly consistent with those ideas, although contrast appears to be an important factor (Backus & Oruç, 2005).".
- Peripheral_drift_illusion thumbnail PDIFaubertHerbert.png?width=300.
- Peripheral_drift_illusion wikiPageExternalLink each-of-these-patterns-move-but-its-all-an-illusion.
- Peripheral_drift_illusion wikiPageExternalLink Faubert%20Herbert%201999.pdf.
- Peripheral_drift_illusion wikiPageExternalLink 10.
- Peripheral_drift_illusion wikiPageExternalLink pattern_illusion.html.
- Peripheral_drift_illusion wikiPageExternalLink rotsnakee.html.
- Peripheral_drift_illusion wikiPageID "4073095".
- Peripheral_drift_illusion wikiPageRevisionID "571059414".
- Peripheral_drift_illusion hasPhotoCollection Peripheral_drift_illusion.
- Peripheral_drift_illusion subject Category:Optical_illusions.
- Peripheral_drift_illusion subject Category:Vision.
- Peripheral_drift_illusion type NaturalPhenomenon111408559.
- Peripheral_drift_illusion type OpticalIllusion111490463.
- Peripheral_drift_illusion type OpticalIllusions.
- Peripheral_drift_illusion type OpticalPhenomenon111490638.
- Peripheral_drift_illusion type Phenomenon100034213.
- Peripheral_drift_illusion type PhysicalEntity100001930.
- Peripheral_drift_illusion type PhysicalPhenomenon111419404.
- Peripheral_drift_illusion type Process100029677.
- Peripheral_drift_illusion comment "The peripheral drift illusion (PDI) refers to a motion illusion generated by the presentation of a sawtooth luminance grating in the visual periphery. This illusion was first described by Faubert and Herbert (1999), although a similar effect called the "escalator illusion" was reported by Fraser and Wilcox (1979). A variant of the PDI was created by Kitaoka Akiyoshi and Ashida (2003) who took the continuous sawtooth luminance change, and reversed the intermediate greys.".
- Peripheral_drift_illusion label "Perifere drift-illusie".
- Peripheral_drift_illusion label "Peripheral drift illusion".
- Peripheral_drift_illusion sameAs Perifere_drift-illusie.
- Peripheral_drift_illusion sameAs m.0bgqlx.
- Peripheral_drift_illusion sameAs Q2696652.
- Peripheral_drift_illusion sameAs Q2696652.
- Peripheral_drift_illusion sameAs Peripheral_drift_illusion.
- Peripheral_drift_illusion wasDerivedFrom Peripheral_drift_illusion?oldid=571059414.
- Peripheral_drift_illusion depiction PDIFaubertHerbert.png.
- Peripheral_drift_illusion isPrimaryTopicOf Peripheral_drift_illusion.
