文献类型：期刊文献

英文题名：Selective Attention Dynamically Modulates the Hierarchical Order of Perceptual and Conceptual Representations

作者：Zhou, Yu[1,2];Zhang, Liang[1,2];Axmacher, Nikolai[1,2,3];Estefan, Daniel Pacheco[3];Wang, Dahui[4];Dai, Yujian[1,2];Peng, Xiaojing[1,2];Liu, Shixiang[5];Xue, Gui[1,2,6]

第一作者：Zhou, Yu

通讯作者：Xue, G[1];Xue, G[2];Liu, SX[3];Xue, G[4]

机构：[1]Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China;[2]Beijing Normal Univ, McGovern Inst Brain Res, IDG, Beijing, Peoples R China;[3]Ruhr Univ Bochum, Inst Cognit Neurosci, Fac Psychol, Dept Neuropsychol, Bochum, Germany;[4]Beijing Normal Univ, Sch Syst Sci, Beijing, Peoples R China;[5]Beijing Union Univ, Teachers Coll, Beijing, Peoples R China;[6]Chinese Inst Brain Res, Beijing, Peoples R China

第一机构：Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China

通讯机构：[1]corresponding author), Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China;[2]corresponding author), Beijing Normal Univ, McGovern Inst Brain Res, IDG, Beijing, Peoples R China;[3]corresponding author), Beijing Union Univ, Teachers Coll, Beijing, Peoples R China;[4]corresponding author), Chinese Inst Brain Res, Beijing, Peoples R China.|[1141711]北京联合大学师范学院;[11417]北京联合大学;

年份：2025

卷号：46

期号：14

外文期刊名：HUMAN BRAIN MAPPING

收录：;Scopus(收录号：2-s2.0-105016710097);WOS:【SCI-EXPANDED(收录号:WOS:001574837600001)】；

基金：This work was supported by the Fundamental Research Funds for the Central Universities (2243300006) and the National Natural Science Foundation of China (32330039).

语种：英文

外文关键词：feature representation; magnetoencephalography; memory retrieval; selective attention; visual perception

摘要：Mounting evidence suggests that information processing in the visual hierarchy involves a progression from low-level perceptual to high-level conceptual features during visual perception, and a reverse traversal during memory retrieval. However, the nature of this processing hierarchy and its modulation by selective attention remain unclear. By using the drift-diffusion model, we found that slower reaction times for conceptual versus perceptual tasks were primarily due to differences in decision boundaries and nondecision times, which were not compensated by faster evidence accumulation for conceptual features. Using single-trial multivariate decoding of magnetoencephalography (MEG) data, we tracked the temporal dynamics of feature representation during visual perceptual and mnemonic tasks. During perception, selective attention reversed the onset times of perceptual and conceptual features in occipital and parietal lobes, enabling earlier detection of conceptual features. Stronger theta oscillation interactions between occipital and temporal regions during task preparation correlated with earlier onset times of target features in the occipital lobe. During retrieval, selective attention led to earlier peak times for perceptual compared to conceptual features in the frontal lobe. These findings provide novel insights into the dynamic nature of hierarchical processing during perception and memory retrieval, highlighting the critical role of selective attention in modulating information accumulation speed.