空军军医大学学报2025，Vol.46Issue(5)：645-649,5.DOI:10.13276/j.issn.2097-1656.2025.05.014
生物运动与空间位置的编码机制及其事件相关电位证据
Encoding mechanisms of biological motion and spatial location and their event-related potential evidence
摘要
Abstract
Objective To explore the encoding mechanism of biological motion and spatial location in working memory and to identify event-related potential(ERP)components specific to the processing of biological motion.Methods The study recruited 29 college students from a military medical university as subjects,using a change detection paradigm,with biological motion as the target feature and spatial location as the irrelevant feature,to investigate whether changes in spatial location affect the detection of biological motion.The materials for biological motion memory were three-dimensional animations.Subsequently,ERP components during the detection were recorded and analyzed,and standardized low-resolution brain electromagnetic tomography was used for source localization analysis.Results Behavioral analysis revealed that changes in spatial location did not significantly affect the accuracy(P=0.541)and reaction time(P=0.275)of biological motion detection.ERP analysis found that changes in biological motion elicited a significantly more positive late positive potential(LPP,P=0.022),while there was no difference in the mean amplitudes of LPP between location changes and the standard condition.Source localization analysis indicated that the postcentral and precentral gyri were the source locations of the LPP in detecting changes in biological motion.Conclusion This study finds that biological motion and spatial location undergo independent encoding in working memory,and the efficacy of LPP in the encoding of biological motion.关键词
生物运动/工作记忆/编码/晚期正电位Key words
biological motion/working memory/encoding/late positive potential分类
医药卫生引用本文复制引用
王显阳,徐翔,魏萍,赵晓冬,范丙杰,王凯,武圣君,刘旭峰,李丛冲,冯廷炜,王超贤,孙科伟,邢婉莹,卢宏亮,仇瑞,王雪峰..生物运动与空间位置的编码机制及其事件相关电位证据[J].空军军医大学学报,2025,46(5):645-649,5.基金项目
军队重点科研项目(XXX-CXCY-M113-07-01-XX,XXXWS221X001) （XXX-CXCY-M113-07-01-XX,XXXWS221X001）
