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 ›› 2011, Vol. 43 ›› Issue (11): 1239-1246.

• • 上一篇    下一篇

多感觉整合测量范式中存在的影响因素探讨

孙远路;胡中华;张瑞玲;寻茫茫;刘强;张庆林   

  1. (1认知与人格教育部重点实验室(西南大学), 重庆 400715) (2西南大学心理学院, 重庆 400715)
    (3解放军外国语学院, 洛阳 471003)
  • 收稿日期:2011-01-09 修回日期:1900-01-01 发布日期:2011-11-30 出版日期:2011-11-30
  • 通讯作者: 刘强

An Investigation on the Effect Factors in the Paradigm of Multisensory Integration

SUN Yuan-Lu;HU Zhong-Hua;ZHANG Rui-Ling;XUN Mang-Mang;LIU Qiang;ZHANG Qing-Lin   

  1. (1 Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing 400715, China)
    (2 School of Psychology, Southwest University, Chongqing 400715, China)
    (3 Chinese People’s Liberation Army Foreign language Institute, Luoyang 471003, China)
  • Received:2011-01-09 Revised:1900-01-01 Online:2011-11-30 Published:2011-11-30
  • Contact: LIU Qiang

摘要: 已有的多感觉整合研究范式多采用不同单通道刺激和双通道刺激随机呈现的方式进行测量。在这种范式中混有通道转换效应, 该效应可能导致多感觉整合的测量结果不准确。因此, 分析清楚实验范式中通道转换效应的影响因素, 并以此为依据设计合理的整合测量范式, 是进行多感觉整合研究的一个必要前提。本文首先通过实验一验证了在经典的整合测量范式中通道转换效应的影响方式; 进而, 在实验二中通过控制前后刺激的信号强度的一致性, 分析了通道转换效应的特点。综合分析显示, 通道转换效应是由前一刺激差异所造成的对当前刺激通道加工的注意资源分配和警觉水平的变化所导致。该结果表明, 在多感觉行为测量中, 需先根据前一刺激通道分类后再进行分析。

关键词: 多感觉整合, 通道转换, 竞争模型, 同激活模型

Abstract: The existing research paradigms of multisensory integration usually involve the random presentation of stimuli of unisensory modalities and bi-sensory modality. Such kind of paradigms, however, exists the modality shift effect which could lead to inaccurate measurement of multisensory integration. Therefore, it is necessary to exam the modality shift effect and separate it from the tests in order to analyze the results of multisensory integration.
Experiment one examined whether modality shift effect affected the audiovisual integration in the previous paradigms of multisensory integration. The visual, auditory, and audiovisual stimuli were randomly presented. Subjects were suggested to respond to those stimuli as quickly as they could. Results showed that the modality types of pre-stimuli affected the response to the post-stimuli. The race modal is invalid only when the pre-stimuli were from the audiovisual or visual modality.
Experiment two manipulated the intensity of pre-and-post stimuli so as to examine whether modality shift effect was caused by the suppression of reaction during the switch of modalities or by the priming on the same modality. The subjects were asked to response when detected visual or auditory stimulus. Through the analysis of the subjects’ reactions, we found that the intensity of pre-stimuli affected the response to the post-stimuli.
Therefore, we concluded that among the paradigms of multisensory integration, two factors had effects on the measurement of multisensory integration: First, dynamic adjusting on distribution of attention affected by the pre-stimuli; second, dynamic adjusting on the alertness of present reaction caused by the intensity of pre-stimuli. To get the pure results in multisensory measuring, these two influence factors should be eliminated in the measurement of multisensory integration.

Key words: multisensory integration, modality shift, race modal, coactivation model