Rapid Unconscious Acquisition of Conditioned Fear with Low-Spatial-Frequency but Emotionally Neutral Stimuli

作     者：Yujie Chen Si Chen Zhongju Sun Xilei Zhang Xiangyong Yuan Liang Wang Yi Jiang Yujie Chen;Si Chen;Zhongju Sun;Xilei Zhang;Xiangyong Yuan;Liang Wang;Yi Jiang

作者机构：State Key Laboratory of Brain and Cognitive SciencesCAS Center for Excellence in Brain Science and Intelligence TechnologyInstitute of PsychologyChinese Academy of SciencesBeijing 100101China Department of PsychologyUniversity of Chinese Academy of SciencesBeijing 100049China Chinese Institute for Brain ResearchBeijing 102206China CAS Key Laboratory of Mental HealthInstitute of PsychologyChinese Academy of SciencesBeijing 100101China 

出 版 物：《Research》 (研究（英文）)

年 卷 期：2024年第2023卷第1期

页      面：753-762页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：grants from the STl2030-Major Projects(2021ZD0204200,2021ZD0203800,and 2022ZD0205000) the National Natural Science Foundation of China(31830037,32020103009,and 32100863) the Strategic Priority Research Program(XDB32010300) CAS Interdisciplinary Innovation Team(JCTD-2018-07 and JCTD-2021-06) the Fundamental Research Funds for the Central Universities 

主　　题：neutral necessarily diameters 

摘      要：It has long been proposed that emotionally“prepared(i.e.,fear-related)stimuli are privileged in the unconscious acquisition of conditioned ***,as fear processing is suggested to highly depend on the coarse,low-spatial-frequency(LSF)components of the fear-related stimuli,it is plausible that LSF may play a unique role in the unconscious fear conditioning even with emotionally neutral ***,we provided empirical evidence that,following classical fear conditioning,an invisible,emotionally neutral conditioned stimulus(CS+)with LSF,but not with high spatial frequency(HSF),can rapidly elicit stronger skin conductance responses(SCRs)and larger pupil diameters than its CS−*** comparison,consciously perceived emotionally neutral CS+with LSF and HSF elicited comparable *** together,these results support that the unconscious fear conditioning does not necessarily entail emotionally prepared stimuli but prioritizes LSF information processing and highlight the crucial distinctions between the unconscious and the conscious fear *** findings not only coincide with the postulation that a rapid,spatial-frequency-dependent subcortical route is engaged in unconscious fear processing but also suggest the existence of multiple routes for conscious fear processing.