视觉掩蔽可基于知觉到的客体位置  

Visual Masking Effect Depends on the Perceived Locations of Objects

作　　者：陈晶[1] 周吉帆[1] 崔杨[1] 沈模卫[1] 

机构地区：[1]浙江大学心理与行为科学系,杭州310028

出　　处：《应用心理学》2009年第4期291-297,共7页Chinese Journal of Applied Psychology

基　　金：教育部高等学校博士学科点专项科研基金(20060335034);国家自然科学基金(30870765);教育部哲学社会科学研究重大课题攻关项目(07JZD0029);国家基础科学人才培养基金(J0630760)

摘　　要：利用flash-lag效应分离视觉掩蔽中客体的物理位置和知觉位置,以探讨掩蔽效应是否基于知觉到的客体位置。实验中掩蔽刺激做圆周运动,到某一位置时,目标刺激短时呈现,要求被试判断目标刺激(缺角菱形)的缺角方向。通过操作目标呈现时二者之间的相对位置,发现当二者物理位置不重合而知觉位置重合时掩蔽效应最大。该结果表明,视觉掩蔽可基于知觉到的客体位置。To explore whether visual masking effect depends on perceived locations of the target and mask objects, we adopted the ＇ flash-lag＇ paradigm to separate physical and perceived locations of the objects. Specifically,the target （a diamond with a missing angle）was presented near to the moving mask briefly. In this case, the mask could be perceptually overlapped on the target when they were physically separated. Ob-servers were asked to report which angle of the target was missing. The results show that the correct rate of target-identification reached the bottom point when the two objects were perceptually overlapped（but not physically overlapped）, suggesting that visual masking effect depends on objects＇ perceived locations.

关 键 词：视觉掩蔽 客体替代理论 输入层 Flash—lag效应 

分 类 号：B842[哲学宗教—基础心理学]