Institutional Repository, Institute of Psychology, Chinese Academy of Sciences
Subliminal Impending Collision Increases Perceived Object Size and Enhances Pupillary Light Reflex | |
Chen, Lihong1,2; Yuan, Xiangyong1; Xu, Qian1,2; Wang, Ying1; Jiang, Yi1,2 | |
摘要 | Fast detection of ambient danger is crucial for the survival of biological entities. Previous studies have shown that threatening information can bias human visual perception and enhance physiological reactions. It remains to be delineated whether the modulation of threat on human perceptual and physiological responses can take place below awareness. To probe this issue, we adopted visual looming stimuli and created two levels of threat by varying their motion trajectories to the observers, such that the stimuli could move in a path that either collided with the observers heads or just nearly missed. We found that when the observers could not explicitly discriminate any difference between the collision and the near-miss stimuli, the visual stimuli on the collision course appeared larger and evoked greater pupil constrictions than those on the near-miss course. Furthermore, the magnitude of size overestimation was comparable to when the impending collision was consciously perceived. Our findings suggest that threatening information can bias human visual perception and strengthen pupil constrictions independent of conscious representation of the threat, and imply the existence of the subcortical visual pathway dedicated to automatically processing threat-related signals in humans. |
关键词 | threat looming size perception pupillary light reflex awareness |
2016-12-02 | |
语种 | 英语 |
DOI | 10.3389/fpsyg.2016.01897 |
发表期刊 | Frontiers in Psychology |
ISSN | 1664-1078 |
卷号 | 7期号:0页码:1-8 |
期刊论文类型 | Article |
收录类别 | SSCI |
WOS关键词 | LOOMING VISUAL-STIMULI ; FACIAL EXPRESSIONS ; BINOCULAR-RIVALRY ; PERCEPTION ; RESPONSES ; THREAT ; AWARENESS ; FEAR ; ATTENTION ; BIAS |
WOS标题词 | Social Sciences |
WOS研究方向 | Psychology |
WOS类目 | Psychology, Multidisciplinary |
WOS记录号 | WOS:000389151900001 |
资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences(XDB02010003) ; National Natural Science Foundation of China(31100733 ; 31525011) |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.psych.ac.cn/handle/311026/20943 |
专题 | 脑与认知科学国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Psychol, CAS Ctr Excellence Brain Sci & Intelligence Techn, State Key Lab Brain & Cognit Sci, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
第一作者单位 | 脑与认知科学国家重点实验室 |
推荐引用方式 GB/T 7714 | Chen, Lihong,Yuan, Xiangyong,Xu, Qian,et al. Subliminal Impending Collision Increases Perceived Object Size and Enhances Pupillary Light Reflex[J]. Frontiers in Psychology,2016,7(0):1-8. |
APA | Chen, Lihong,Yuan, Xiangyong,Xu, Qian,Wang, Ying,&Jiang, Yi.(2016).Subliminal Impending Collision Increases Perceived Object Size and Enhances Pupillary Light Reflex.Frontiers in Psychology,7(0),1-8. |
MLA | Chen, Lihong,et al."Subliminal Impending Collision Increases Perceived Object Size and Enhances Pupillary Light Reflex".Frontiers in Psychology 7.0(2016):1-8. |
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