ISSN 0439-755X
CN 11-1911/B
主办：中国心理学会
　　　中国科学院心理研究所
出版：科学出版社

心理学报 ›› 1999, Vol. 31 ›› Issue (3): 274-283.

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影响视觉复合刺激中整体和局部性质加工的几种因素

韩世辉;肖峰   

  1. 中国科学技术大学北京认知科学开放研究实验室!北京，100039,中国科学技术大学北京认知科学开放研究实验室!北京，100039
  • 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 韩世辉

FACTORS AFFECTING THE GLOBAL AND LOCAL PROCESSING OF VISUAL COMPOUND STIMULI

Han Shihul ;Xiao Feng(Beijing Lab of Cognitive Science, University of Science and Technology of China, Beijing, 100039)   

  • Published:1999-09-25 Online:1999-09-25

摘要： 文章研究了视知觉组织、空间位置不确定性和视野位置等因素对复合刺激中整体和局部性质加工的影响。实验发现，（1）当复合刺激呈现在白背景上时，反应时和干扰作用都表明复会刺激中大图的加工优于小图，刺激位置的不确定削弱大图对小图的干扰作用；而当复会刺激呈现在由“＋”组成的背景图形中时，小图的加工优于大图，刺激位置的不确定延长分辨小图的RT；（2）与周边刺激相比、分辨视野中央的复合刺激的RT较短，这种影响对分辨小图的RT更大；（3）分辨左、右视野内复合刺激的反应没有显著差别。作者认为，背景“＋”图形削弱了小图基于空间相邻性的知觉组织，使图形相似性成为决定小图知觉组织的主要因素，从而导致整体优先性的削弱。文章还讨论了其他因素影响复会刺激加工的机制。

关键词: 复合刺激, 视知觉组织, 空间位置不确定性, 整体性质, 局部性质

Abstract: This paper examined the effects of perceptual grouping,locational uncertainty, andshmulus positions in the visual field on the processing of global and local propertiesof compound stimuli. It was found that (1)when compound stimui were presentod on awhite background, RT and interference displayed a global advantage. The globalinterference was eliminated by locational uncendnty. When compound stimuli werepresented on a background made up of " +" patterns, the local processing dominatedthe global processing. Locational uncertainty slowed local responses. (2)RTs to thecompound stimuli were longer when stimuli were displayed in the peripheral than thecentral visual fields. This effect was larger for local RTs than for global RT. (3)therewere no differences between responses to compound stimuli presented in the left andright visual fields. The authors suggested that the background " +" weakened globalprecedence through eliminating proximity grouping of local elements and making shapesimilarity dominate grouping. This paper also discussed the effect of other factors onthe processing of compound shmuli.

Key words: compound stimulus, visual perceptual grouping, locational uncertainty, global property, local property