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Unstable Mean Context Causes Sensitivity Loss and Biased Estimation of Variability
Tong Ke1,2; Ji Luyan3; Chen Wenfeng1; Fu Xiaolan1
第一作者Tong Ke
2015
发表期刊Journal of Vision
ISSN1534-7362
卷号5期号:4页码:15
产权排序1
摘要A recent study has suggested that statistical representations of ensemble objects may provide contextual stability to facilitate perception. The present study investigated whether facilitating such perception occurs in the extraction of variability information and how the stability of context mean values influences variability perception. We designed two tasks in which participants directly judged the variability of stimuli. In Experiment 1, we manipulated both the stability of the mean values and the exposure time to observe the time course of stability facilitation. In Experiment 2, we decomposed the stability of the context mean values into between-trials and within-trial levels to further investigate the mechanism of such facilitation. The results revealed that stable mean contexts do facilitate variability perception. In particular, unstable long-term mean context causes loss of sensitivity to variability whereas response bias is determined by the interaction between long-term and transient mean stability.
学科领域认知心理学
DOI10.1167/15.4.15
收录类别其他
语种英语
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文献类型期刊论文
条目标识符http://ir.psych.ac.cn/handle/311026/20725
专题脑与认知科学国家重点实验室
通讯作者Chen Wenfeng
作者单位1.State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
2.University of Chinese Academy of Sciences, Beijing, China
3.Psychopathology and Affective Neuroscience Laboratory, Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium
推荐引用方式
GB/T 7714
Tong Ke,Ji Luyan,Chen Wenfeng,et al. Unstable Mean Context Causes Sensitivity Loss and Biased Estimation of Variability[J]. Journal of Vision,2015,5(4):15.
APA Tong Ke,Ji Luyan,Chen Wenfeng,&Fu Xiaolan.(2015).Unstable Mean Context Causes Sensitivity Loss and Biased Estimation of Variability.Journal of Vision,5(4),15.
MLA Tong Ke,et al."Unstable Mean Context Causes Sensitivity Loss and Biased Estimation of Variability".Journal of Vision 5.4(2015):15.
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