The effect of successive contrast on perceived size

Daniel Gramm Kristensen, Sofie Engbjerg Christensen, Thomas Alrik Sørensen

Publikation: Konferencebidrag uden forlag/tidsskriftKonferenceabstrakt til konferenceForskning


The successive contrast effect demonstrates how contrast between an object and its background affects its perceived lightness. For example, a neutral grey square is perceived as lighter when presented on a dark background compared to a square of the same grey presented on a lighter background. In extension to these findings, we designed an experiment to test the effect of successive figure-ground contrast on perceived size. In a series of two-interval forced choice experiments, we asked participants to identify the larger of two neutral grey discs presented on either a lighter or a darker background at 3 different contrast levels. In all cases, we find that the perceived size of the disc on a light background is negatively correlated with the perceived size of the same disc on a dark background. This indicates a hitherto unreported relationship between scene contrast and size perception. We further speculate that this effect may contribute to size illusions such as the Ebbinghaus and Delboeuf illusions.
Publikationsdato12 okt. 2022
Antal sider1
StatusUdgivet - 12 okt. 2022
BegivenhedIcelandic Vision Lab Summer Vision Symposium - Bláskógaskóli Laugarvatni, Laugarvatn, Island
Varighed: 13 okt. 202216 okt. 2022
Konferencens nummer: 6


KonferenceIcelandic Vision Lab Summer Vision Symposium
LokationBláskógaskóli Laugarvatni


Dyk ned i forskningsemnerne om 'The effect of successive contrast on perceived size'. Sammen danner de et unikt fingeraftryk.