自我和物体为参照系的心理旋转分离：内旋效应  

The Dissociation of Egocentric and Allocentric Mental Rotation through an In-Rotation Effect

作　　者：陶维东[1,2] 孙弘进[1,2,3] 闫京江[1,2] 周柳[1,2] 

机构地区：[1]认知与人格教育部重点实验室(西南大学) [2]西南大学心理学院,重庆400715 [3]Department of Psychology, McMaster University, Canada

出　　处：《心理学报》2008年第1期14-24,共11页Acta Psychologica Sinica

基　　金：西南大学基础心理学国家级重点学科项目(批准号:XGZ413062)

摘　　要：采用虚拟的旋转不同角度左、右手模型,构建"左右手判断(Left and right hand judgment:LR)"任务和"相同-不同判断(same and different judgment:SD)"任务,考察这两种实验任务是否都存在内旋效应和角度效应,以此推论被试采用何种旋转策略。结果发现:(1)两种实验任务结果均表现出显著的角度效应;(2)在LR任务条件下,存在显著的内旋效应,而在SD任务中不存在内旋效应。从而表明当人手图片作为心理旋转材料时,它具有双重角色。被试心理旋转加工时究竟选用何种参照系的旋转策略,与实验材料和实验任务两者都密不可分。Mental rotation involves the spatial transformation of the mental image of a physical stimulus. The following two mental rotation tasks have been employed in the literature： （I） left-right or normal - mirror judgment task and （2） the same-different judgnent task. The time taken in making these judgments as well as the errors made often increase with the angttlar difference in orientation between the stimuli, or the difference between imagined and normalized orientation. Further, mental rotation can be classified into two categories based on the reference flame adopted： egocentric and allocentric, The stimuli representing bodies or body parts such as hands are often considered as a special class of stimuli; this is because when they are used as stimuli in mental rotation tasks, they tend to induce egocentric mental rotation. However, there is no conclusive evidence demonstrating that material of body parts in fact draws forth egocentric mental rotation; more importantly, there has been no evidence demonstrating that the images of body parts can also elicit allocentric mental rotation. In the current study, using two experimental paradigms （left-right judgment task and same-different judgment task）, we explored the possibility of the dissociation of these two processing mechanisms using a special stimulus （hand）, which may induce a mental transformation of either the viewer＇s own body （hand） or the visual display. The stimuli comprised images of the back of the human hands created by a 3D graphics software. Each picture of the hand was presented at an orientation rotated in the medial （in - rotation） or lateral （out - rotation） direction from the uprilaht orientation. In experiment I, each participant completed a left or right hand judgment task （LR task） when the picture of either a left or right hand was presented. Three factors were manipulated： hands （left hand vs. right hand）, the direction of rotation （in - rotation vs. out - rotation）, and the magnitude of r

关 键 词：心理旋转 内旋效应 角度效应 自我参照系 物体参照系 

分 类 号：B842[哲学宗教—基础心理学]