相位交错光栅诱导的一种错觉运动
其他题名Novel Visual Motion Illusion Induced By Phase-Shifted Line Gratings
Junxiang Luo; Zheyuan Chen; Yiliang Lu; Ian M. Andolina; Lothar Spillmann; Wei Wang
2016
会议名称2016年第一届北京视觉科学会议
会议日期2016-07
会议地点北京
会议主办者中国科学院心理研究所
其他摘要

PURPOSE: In a horizontal pattern consisting of zigzagging strips of phase-shifted abutting line gratings, strong diagonal and lateral illusory motion is perceived when the pattern is moved up or down at moderate speed. We wished to study how different configurations affect the saliency of apparent motion and find out the how the illusory motion is induced.
METHODS: We performed psychophysical experiments on nine subjects to test the salience of apparent motion when changing the spacing, length of the inducing lines, width of zigzags as well as their luminance contrast.
RESULTS: The apparent motion is strongly influenced by the spacing, length of the inducing lines, width of zigzags as well as the luminance contrast. With isoluminant color defining the pattern and background, apparent motion is largely abolished. No motion is seen when the zigzagging grating strips are separated by a gap, when the grating lines are interleaved or when the grating strips are delineated at the interface by a continuous line.
CONCLUSIONS: Two types of motion were distinguished according to their directions, (i) motion along the diagonal interface between the zigzagging grating strips and (ii) collinear motion in the direction of the horizontal grating lines. We hypothesized, based on the equiluminant findings that the apparent motion could be dominantly processed by the magnocellular pathway, which encodes motion signals while being largely insensitive to color. The endpoints of grating lines is crucial for the existence of the illusory motion. The neural mechanisms underlying this illusion require further investigation.

关键词Phase-shifted line gratings motion illusion apparent motion luminance contrast equiluminance
学科领域感知觉心理学
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收录类别其他
语种英语
文献类型会议论文
条目标识符http://ir.psych.ac.cn/handle/311026/20810
专题心理所主办学术会议_2016年第一届北京视觉科学会议_会议摘要
作者单位State Key Laboratory of Neuroscience and Key Laboratory of Primate Neurobiology, Institute of Neuroscience, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
推荐引用方式
GB/T 7714
Junxiang Luo,Zheyuan Chen,Yiliang Lu,等. 相位交错光栅诱导的一种错觉运动[C]. 见:2016年第一届北京视觉科学会议. 北京. 2016-07.http://vision.csp.escience.cn/dct/page/1.
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