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More accurate size contrast judgments in the Ebbinghaus illusion by a remote culture

Abstract : The Ebbinghaus (Titchener) illusion was examined in a remote culture (Himba) with no words for geometric shapes. The illusion was experienced less strongly by Himba compared with English participants, leading to more accurate size contrast judgments in the Himba. The study included two conditions of inducing stimuli. The illusion was weaker when the inducing stimuli were dissimilar (diamonds) to the target (circle) compared with when they were similar (circles). However, the illusion was weakened to the same extent in both cultures. It is argued that the more accurate size judgments of the Himba derive from their tendency to prioritize the analysis of local details in visual processing of multiple objects, and not from their impoverished naming.
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https://hal.archives-ouvertes.fr/hal-01440617
Contributor : Jean-Baptiste Melmi Connect in order to contact the contributor
Submitted on : Thursday, January 19, 2017 - 1:35:53 PM
Last modification on : Tuesday, October 19, 2021 - 10:58:52 PM

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Jan Fockert, Jules Davidoff, Joël Fagot, Carole Parron, Julie Goldstein. More accurate size contrast judgments in the Ebbinghaus illusion by a remote culture. Journal of Experimental Psychology: Human Perception and Performance, American Psychological Association, 2007, 33 (3), pp.738-742. ⟨10.1037/0096-1523.33.3.738⟩. ⟨hal-01440617⟩

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