注意对视知觉空间的影响

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	注意对视知觉空间的影响
其他题名	An Ambient Attention for Visual Space Perception
	Liu Zhou ; Teng Leng Ooi ; Zijiang J. He
	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
其他摘要	PURPOSE: Whereas attention readily facilitates the detection and discrimination of objects, it is unknown whether it aids in forming the vast voluminous visual space that contains the objects. Conventional wisdom suggests not, given the e?ortless ease in which we perceive 3D-scenes. Here, we asked if a di?erential allocation of an ambient attention resource to either the lower visual field (ground) or upper visual field (ceiling) a?ects space perception. METHODS: In Experiment 1, the observer judged the location of a brie?y presented target (1 sec) placed either on the textured ground or ceiling surface (2x4 LED array spanning 1.4x3m area, 0.15 sec). Prior to target presentation and to ensure proper ?xation, a dimly lit LED was randomly turned o? for 0.1 sec, 1-3 times within a 3-6 sec ?xation period. The observer had to correctly report each time the LED ?ickered. Meantime, he/she attended to either the upper or lower ?eld. RESULTS: We found judged location was more accurate for a target on the ground, provided the ground was visible plus the observer directed ambient attention to the lower visual field and not the upper ?eld. This reveals attention facilitates space perception with reference to the ground. Our second experiment found judged location of a midair target with both ground and ceiling surfaces present was more accurate when the observer attended to the lower visual field, indicating that the ambient attention e?ect extends to visual space above the ground. CONCLUSIONS: These ?ndings underscore attention's role in anchoring visual orientation in space, arguably, a primal event that enhances one's ability to interact with objects within the space. That the ambient attention's e?ect was contingent on the ground being visible suggests that our terrestrial visual system is best served by its ecological niche.
会议主办者	中国科学院心理研究所
关键词	attention space perception blind-walking task ground superiority
学科领域	感知觉心理学
URL	查看原文
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/311026/20837
专题	心理所主办、承办、协办学术会议_2016年第一届北京视觉科学会议_会议摘要
作者单位	1.School of Psychology and Cognitive Science, East China Normal University, 3663 N Zhongshan Road, China, 200062 2.College of Optometry, The Ohio State University, Columbus, OH 43210, USA 3.Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY 40292, USA
推荐引用方式 GB/T 7714	Liu Zhou,Teng Leng Ooi,Zijiang J. He. 注意对视知觉空间的影响[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.