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The snow tire illusion : Different levels of perceptual assimilation across a single stimulus configuration (CROSBI ID 248377)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Gulan, Tanja ; Valerjev, Pavle ; Dujmović, Marin The snow tire illusion : Different levels of perceptual assimilation across a single stimulus configuration // PsyCh Journal, 7 (2018), 2; 68-76. doi: 10.1002/pchj.208

Podaci o odgovornosti

Gulan, Tanja ; Valerjev, Pavle ; Dujmović, Marin

engleski

The snow tire illusion : Different levels of perceptual assimilation across a single stimulus configuration

While observing a specific traffic sign in the field, we noticed an apparent distortion of size and shape of the circle that contained the sign. This novel illusion manifests as a distortion of the horizontal compared to the vertical dimension of the sign. The illusion seems to be underlined by similar mechanisms to those in the Delboeuf illusion. The aim of our study was to determine the existence and magnitude of the snow tire illusion. We conducted two experiments using the method of constant stimuli. The first experiment was conducted on the standard sign, while in the second, the stimuli were rotated 90° counterclockwise. Both experiments consisted of three conditions: the snow tire, the ellipse, and the simple circle (control) conditions. The data showed a robust illusion effect for both the standard and rotated sign compared to the control condition, with a large majority of participants experiencing the illusion. The snow tire illusion seems to be a combination of assimilation mechanisms of different magnitudes. The assimilation is larger for one dimension of the sign, thus producing the shape distortion. The illusion may be a manifestation of a thus far undocumented non-uniform effect of assimilation on perceived size and shape.

assimilation ; Delboeuf illusion ; shape distortion ; traffic sign illusion

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

7 (2)

2018.

68-76

objavljeno

2046-0260

10.1002/pchj.208

Povezanost rada

Psihologija

Poveznice
Indeksiranost