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  The spoke brightness illusion originates at an early motion processing stage

Holcombe, A., Intriligator, J., & Tse, P. (2000). The spoke brightness illusion originates at an early motion processing stage. Perception Psychophysics, 62(8), 1619-1624. doi:10.3758/BF03212159.

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 Urheber:
Holcombe, AO, Autor
Intriligator, J, Autor
Tse, PU1, Autor           
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              

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 Zusammenfassung: When a bright white disk revolves around a fixation point on a gray background, observers perceive a "spoke": a dark gray region that connects the disk with the fixation point. Our first experiment suggests that motion across the retina is both necessary and sufficient for spokes: The illusion occurs when a disk moves across the retina even though it is perceived to be stationary, but the illusion does not occur when the disk appears to move while remaining stationary on the retina. A second experiment shows that the strength of the illusion decreases with decreasing luminance contrast until subjective equiluminance, where little or no spoke is perceived. These results suggest that spokes originate at an early, predominantly luminance-based stage of motion processing, before the visual system discounts retinal motion caused by smooth pursuit.

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 Datum: 2000-12
 Publikationsstatus: Erschienen
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Titel: Perception Psychophysics
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 62 (8) Artikelnummer: - Start- / Endseite: 1619 - 1624 Identifikator: -