Asymmetric Effects of the Ebbinghaus Illusion on Depth Judgments
Asymmetric Effects of the Ebbinghaus Illusion on Depth Judgments
复制标题
艾宾浩斯错觉对深度判断的不对称影响
DOI:
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发表时间:
2020
期刊:
影响因子:
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通讯作者:
J. Adam Jones
中科院分区:
文献类型:
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作者:
Hunter Finney;J. Adam Jones
The Ebbinghaus illusion, also known as Titchner Circles, is a well- known perceptual illusion affecting the perceived size of a disc enclosed by an annulus of either larger or smaller discs. Though many have found highly consistent results with regard to the effect of the illusion on size perception, there have been mixed results when studying its effect on action-based tasks. In this paper, we present a study utilizing a head-worn virtual environment to examine the effect of the Ebbinghaus illusion on depth judgments as measured using a blind-reaching task. We found that participants’ size judgments were symmetrically affected by the classic "large annulus" and "small annulus" configurations, but their distance judgments were asymmetrically affected. Large annulus configurations had no significant effect on distance judgments while small annulus configurations resulted in significant underestimation of target distances. Despite this asymmetry, both configurations resulted in response times of similar magnitude that were significantly longer than those of the non-illusory control condition.