College of Education and Physical Education, Yangtze University, Jingzhou, China.
Neurocognition and Action-Biomechanics Research Group, Faculty of Psychology and Sports Science, Bielefeld University, Bielefeld, Germany.
PLoS One. 2024 Sep 18;19(9):e0310502. doi: 10.1371/journal.pone.0310502. eCollection 2024.
Biological motion perception is an essential part of the cognitive process. Stress can affect the cognitive process. The present study explored the intrinsic ERP features of the effects of acute psychological stress on biological motion perception. The results contributed scientific evidence for the adaptive behavior changes under acute stress. After a mental arithmetic task was used to induce stress, the paradigm of point-light displays was used to evaluate biological motion perception. Longer reaction time and lower accuracy were found in the inverted walking condition than in the upright walking condition, which was called the "inversion effect". The P2 peak amplitude and the LPP mean amplitude were significantly higher in the local inverted perception than in the local upright walking condition. Compared to the control condition, the stress condition induced lower RT, shorter P1 peak latency of biological motion perception, lower P2 peak amplitude and LPP mean amplitude, and higher N330 peak amplitude. There was an "inversion effect" in biological motion perception. This effect was related to the structural characteristics of biological motion perception but unrelated to the state of acute psychological stress. Acute psychological stress accelerated the reaction time and enhanced attention control of biological motion perception. Attention resources were used earlier, and less attentional investment was made in the early stage of biological motion perception processing. In the late stage, a continuous weakening of inhibition was shown in the parieto-occipital area.
生物运动知觉是认知过程的重要组成部分。压力会影响认知过程。本研究探讨了急性心理应激对生物运动知觉的内在 ERP 特征。研究结果为急性应激下的适应性行为变化提供了科学依据。采用心算任务诱发应激后，采用点光显示范式评估生物运动知觉。发现倒立行走的反应时间比正立行走长，准确性低，这被称为“反转效应”。局部倒立感知的 P2 峰振幅和 LPP 平均振幅明显高于局部正立行走条件。与对照条件相比，应激条件下的 RT 降低，生物运动知觉的 P1 峰潜伏期缩短，P2 峰振幅和 LPP 平均振幅降低，N330 峰振幅升高。生物运动知觉存在“反转效应”。这种效应与生物运动知觉的结构特征有关，与急性心理应激状态无关。急性心理应激加速了生物运动知觉的反应时间，并增强了对其的注意控制。注意力资源更早地被利用，在生物运动知觉处理的早期阶段投入的注意力较少。在后期，顶枕区表现出持续的抑制减弱。
