Unstable Mean Context Causes Sensitivity Loss and Biased Estimation of Variability
文献类型：期刊论文
| 作者 | Tong Ke1,2; Ji Luyan3; Chen Wenfeng1 ; Fu Xiaolan1
|
| 刊名 | Journal of Vision
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:4页码:15 |
| ISSN号 | 1534-7362 |
| 产权排序 | 1 |
| 通讯作者 | Chen Wenfeng |
| 英文摘要 | 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. |
| 学科主题 | 认知心理学 |
| 收录类别 | 其他 |
| 语种 | 英语 |
| 源URL | [http://ir.psych.ac.cn/handle/311026/20725]  |
| 专题 | 心理研究所_脑与认知科学国家重点实验室 |
| 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. |
入库方式： OAI收割
来源：心理研究所
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