| 急性心理应激对协同运动知觉的影响及其机制:基于ERP的证据 |
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| 引用本文： | 王积福,贺梦阳,漆昌柱.急性心理应激对协同运动知觉的影响及其机制:基于ERP的证据[J].体育科学,2021(2):69-78,87. |
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| 作者姓名： | 王积福 贺梦阳 漆昌柱 |
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| 作者单位： | 长江大学教育与体育学院;武汉体育学院心理学系 |
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| 基金项目： | 国家自然科学基金面上项目(31671161);长江大学教体学院科研基金重点项目(2020JTA03)。 |
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| 摘 要： | 目的:通过双任务范式探究急性心理应激对协同运动知觉加工过程的影响及其机制。方法:采用乘法估算任务来诱发急性心理应激状态,应用随机点运动图(randon-dot kinematogran,RDK)任务范式来评价协同运动知觉能力的大小。结果:随着协同性水平的增加,被试的反应时逐渐缩短,正确率逐渐升高,P2成分的潜伏期逐渐缩短;相比较于控制条件,应激条件下被试协同性运动知觉判断的反应时更短,P2成分出现更早,晚期正成分LPP平均波幅值更小,以及0.75水平协同性运动知觉诱发的N2波幅值更大。结论:协同性水平对协同运动知觉加工具有积极效应,注意效率更高。急性心理应激状态下协同运动知觉加工速度加快,注意控制能力增强;在协同运动知觉加工早期阶段注意资源投入较早,在晚期阶段枕区表现出持续性抑制减弱现象。
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| 关 键 词： | 事件相关电位 急性心理应激 协同运动知觉 随机点运动图范式 |
Effect of Acute Psychological Stress on Coherent Motion Perception:An Event-Related Potential Study |
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| WANG Jifu,HE Mengyang,QI Changzhu.Effect of Acute Psychological Stress on Coherent Motion Perception:An Event-Related Potential Study[J].China Sport Science,2021(2):69-78,87. |
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| Authors: | WANG Jifu HE Mengyang QI Changzhu |
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| Institution: | (College of Education and Sports Sciences,Yangtze University,Jingzhou 434023,China;Department of Psychology,Wuhan Sports University,Wuhan 430079,China) |
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| Abstract: | Objective:To explore the intrinsic ERP features of the effects of acute psychological stress on the processing of coherent motion perception by using a dual-task paradigm.Methods:The mental arithmetic task with uncontrollability and social threat evaluation was used to induce acute psychological stress,and the coherent motion perception was evaluated by using RDK task paradigm.Results:With the increase of coherence ability,the reaction time was gradually shortened and the accuracy was gradually increased;in addition,the latency of the P2 component was gradually shortened.Compared to the control condition,the reaction time of coherent motion perception tasks was shorter,the appearance of P2 component was earlier,the average wave amplitude of the late positive component(LPP)was lower,and the N2 wave amplitude induced by the 0.75 level of coherence was higher under stress condition.Conclusions:There was a positive association between coherence and the processing of coherent motion perception,the attention efficiency was higher when the coherence was greater.Under the stress condition,the processing speed of coherent motion perception was accelerated,and the ability of attention control was enhanced.The results showed that the attention resources were invested earlier in the early stage of coherent motion perception processing,and the inhibition continues of the occipital area was weakened in the late stage. |
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| Keywords: | ERPs acute psychological stress coherent motion perception RDK task paradigm |
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