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Robust size illusion produced by expanding and contracting flow fields
Dong, Xue1,2; Bai, Jianying1; Bao, Min1
第一作者Dong, Xue
2017-04-01
发表期刊VISION RESEARCH
通讯作者邮箱baom@psych.ac.cn
ISSN0042-6989
文章类型Article
卷号133期号:0页码:87-94
摘要

A new illusion is described. Randomly positioned dots moved radially within an imaginary annular window. The dots' motion periodically changed the direction, leading to an alternating percept of expanding and contracting motion. Strikingly, the apparent size of the enclosed circular region shrank during the dots' expanding phases and dilated during the contracting phases. We quantitatively measured the illusion, and found that the presence of energy at the local kinetic edge could not account for the illusion. Besides, we reproduced the illusion on a natural scene background seen from a first-person point of view that moved forward and backward periodically. Blurring the boundaries of motion areas could not reverse the illusion in all subjects. Taken together, our observed illusion is likely induced by optic flow processing with some components of motion contrast. Expanding or contracting dots may induce the self-motion perception of either approaching or leaving way from the circle. These will make the circle appear smaller or larger since its retinal size remains constant. (C) 2017 Elsevier Ltd. All rights reserved.

关键词Size illusion Motion Optic flow Size constancy Depth perception
DOI10.1016/j.visres.2017.01.003
收录类别SCI ; SSCI
语种英语
项目资助者Key Research Program of Chinese Academy of Sciences(KSZD-EW-TZ-003) ; National Natural Science Foundation of China(31371030)
WOS研究方向Neurosciences & Neurology ; Ophthalmology
WOS类目Neurosciences ; Ophthalmology
WOS记录号WOS:000399865500009
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]HUMAN VISUAL-CORTEX ; OPTIC FLOW ; INDUCED MOTION ; SELF-MOTION ; PERCEPTION ; AREA
引用统计
文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/21648
专题中国科学院行为科学重点实验室
通讯作者Bao, Min
作者单位1.Inst Psychol, CAS Key Lab Behav Sci, 16 Lincui Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Dong, Xue,Bai, Jianying,Bao, Min. Robust size illusion produced by expanding and contracting flow fields[J]. VISION RESEARCH,2017,133(0):87-94.
APA Dong, Xue,Bai, Jianying,&Bao, Min.(2017).Robust size illusion produced by expanding and contracting flow fields.VISION RESEARCH,133(0),87-94.
MLA Dong, Xue,et al."Robust size illusion produced by expanding and contracting flow fields".VISION RESEARCH 133.0(2017):87-94.
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