ISSN 1671-3710
CN 11-4766/R
主办：中国科学院心理研究所
出版：科学出版社

心理科学进展 ›› 2015, Vol. 23 ›› Issue (10): 1723-1731.doi: 10.3724/SP.J.1042.2015.01723

• 研究前沿 • 上一篇    下一篇

统计概要表征的内容与机制

仝可1,2;唐薇1,2;陈文锋1;傅小兰1   

  1. (1中国科学院心理研究所, 脑与认知科学国家重点实验室, 北京 100101)
    (2中国科学院大学, 北京 100049)
  • 收稿日期:2015-01-23 出版日期:2015-10-15 发布日期:2015-10-15
  • 通讯作者: 陈文锋, E-mail: chenwf@psych.ac.cn
  • 基金资助:

    国家自然科学基金委面上项目(31371031), 国家重点基础研究发展计划课题(2011CB302201)。

Statistical Summary Representation: Contents and Mechanisms

TONG Ke1,2; TANG Wei1,2; CHEN Wenfeng1; FU Xiaolan1   

  1. (1 State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences,
    Beijing 100101, China) (2 University of Chinese Academy of Sciences, Beijing 100049, China)
  • Received:2015-01-23 Online:2015-10-15 Published:2015-10-15
  • Contact: CHEN Wenfeng, E-mail: chenwf@psych.ac.cn

PDF (PC)

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摘要：

人类能够快速提取集合刺激中的统计信息, 并形成以集中趋势和变异性为主要内容的统计概要表征。根据注意资源的使用, 统计概要表征的加工方式可分为分布式注意下的整体加工和聚焦注意下的个体加工。两种加工在工作记忆中相互影响, 共同构建了对集合刺激的表征。统计概要表征适用于多种刺激类型, 发生在低水平和高水平加工中, 因而可能是一种普遍的知觉加工方式。未来研究可关注统计概要表征的神经基础及其对决策的影响。

关键词: 统计概要表征, 集中趋势, 变异性, 整体表征, 抽样策略

Abstract:

Humans are capable of extracting statistical information from multiple stimuli and forming statistical summary representation (SSR), in which central tendency and variability of the stimuli are represented. According to the use of attentional resource, the mechanisms of SSR could be categorized into ensemble processing under distributed attention and individual processing under focused attention. Both mechanisms interact in the working memory, constructing the representation of multiple stimuli. SSR occurs across different stimulus types in both low-level and high-level processing, suggesting that it may be a common encoding method in perception. Future work on SSR may focus on its neural substrates and its impact on decision making.

Key words: statistical summary representation, central tendency, variability, ensemble representation, sampling strategy