文章基本信息

标题：Perception of Biological Motion in Central and Peripheral Visual Fields
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作者：Ilze Laicāne ; Jurģis Šķilters ; Vsevolod Lyakhovetskii 等
期刊名称：Proceedings of the Latvian Academy of Sciences, Section B. Natural, exact, and applied sciences, B dala. Dabaszinatnes
印刷版ISSN：1407-009X
电子版ISSN：1407-009X
出版年度：2017
卷号：71
期号：5
页码：320-326
DOI：10.1515/prolas-2017-0056
语种：English
出版社：The Academy
摘要：Studies analysing biological motion perception based on reduced number of dots have demonstrated that biological motion can be perceived even when only the lower part of the body is visible or when the number of dots representing the object is reduced. What is the minimal amount of information that enables biological motion to be distinguished from its scrambled version? The results of the current experiment demonstrate that biological motion can be distinguished from its scrambled version when the object is formed of approximately 5 (4.7 ± 0.1) dots. Additionally, we also investigated whether the threshold value for biological motion perception differs in central and peripheral visual fields. By using stimulus magnification, we demonstrate that the number of dots sufficient for biological motion perception is similar in the central visual field and near periphery. Hence, stimulus magnification can compensate for reduced task performance in the peripheral visual field. The current results suggest that reduced performance of biological motion perception in the peripheral visual field (as demonstrated in other studies) is due to difficulties with the global perception of biological motion.
关键词：biological motion; eccentricity; peripheral vision; stimulus magnification