特征变化的连续性影响客体连续表征的维持  

The Continuity of Feature Change Affects the Maintenance of Persisting Object Representations

作　　者：杨立状[1] 樊琦[2] 蒋怀滨[3] 邵志芳[4] 

机构地区：[1]中国科学技术大学生命科学学院,中国科学院脑功能与脑疾病重点实验室,合肥230026 [2]中国电信上海研究院,上海200122 [3]福建师范大学福清分校,福州350300 [4]华东师范大学心理与认知科学学院,上海200062

出　　处：《心理科学》2014年第2期294-297,共4页Journal of Psychological Science

基　　金：福建社科规划青年项目(2009C2002);福建省教育厅人文社科A类项目(JA13353S)的资助

摘　　要：本研究采用客体回溯范式考察了特征变化的连续性对维持客体连续表征的作用。实验1和实验2分别探索了形状维度上的变化方式(不变、渐变、突变)和亮度维度上的变化方式(不变、渐变、随机变化)对客体预览利化效应的影响。在特征连续条件下(不变或渐变),两个实验都获得了客体预览利化效应。而在特征不连续变化条件下(突变或随机变化),该效应消失。这些结果说明特征变化的连续性同样影响客体连续表征的维持。Background： Whether feature or spatial-temporal information is critical for maintenance of persisting object representation is still debated. The similarity theory emphasizes the role of feature information. However, object file theory proposes the spatial-temporal continuity of object position help maintain the persisting object representation. Previous studies based on the object file framework revealed that feature information alone could not support persisting object representation. However, those studies neglected the difference between the static feature and the feature change. The present study tested the hypothesis that the continuity of feature change may be a necessary condition for maintenance of persisting object representation. Method： The object reviewing paradigm was adopted. In each trial, two characters flashed briefly in two circles. Then the circles moved smoothly to vertical positions. One probe character appeared in one of circles at the end of moving. Participants made a rapid judgment on whether the character was one of the two characters appeared at the beginning of moving. If the probe was one of two characters presented before, it might appear in the congruent circle （congruent condition） or in the incongruent circle （incongruent condition）. Object Specific Preview Benefits （OSPB）, the difference between reaction times of the incongruent condition and the congruent condition, was taken as an index of how well the persisting object representation was preserved. The continuity of feature change was manipulated as a between subject factor within each experiment. There were 3 levels of continuity： No-change, Gradual-change and Abrupt-change （or Random-change）. Experiment 1 tested whether shape change continuity affected object persistence. In the No-Change condition （n = 10）, the object shape did not change during the moving. In the Gradual-Change condition （n = 17）, the object shape changed gradually from a circle to an oval shape during moving. In the Abrupt-C

关 键 词：客体档案 特征变化 客体表征连续性 

分 类 号：B842[哲学宗教—基础心理学]